As you mentioned you want to find a solution for removing line. I have no idea to do that but I also prefer to write my own menu system that is dynamic and customizable ( specially in animation and graphic ). You can pick the source code that written for my own projects.
And design your layout as you wish.
Sample Result:

UPDATE: COMPLETE ANSWER
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public class MenuActivity extends EnhancedActivity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
}
}
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public class EnhancedActivity extends Activity {
private static Activity _this;
public static Activity getCurrent() {
    return _this;
}
public static void setCurrent(Activity activity) {
    _this = activity;
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);
    _this = this;
    G.gWidgetMenu.retarget();
}
@Override
protected void onResume() {
    super.onResume();
    if (_this == this) {
        return;
    }
    _this = this;
    G.gWidgetMenu.retarget();
}
@Override
protected void onPause() {
    G.gWidgetMenu.forceClose();
    super.onPause();
}
@Override
public boolean onKeyDown(int keycode, KeyEvent e) {
    if (G.gWidgetMenu.processKey(keycode, e)) {
        return true;
    }
    return super.onKeyDown(keycode, e);
}
}
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public class G extends Application {
public static Context        gContext;
public static LayoutInflater gInflator;
public static WidgetMenu     gWidgetMenu;
@Override
public void onCreate() {
    gContext = getApplicationContext();
    gInflator = (LayoutInflater) gContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    gWidgetMenu = new WidgetMenu();
}
}
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public class WidgetMenu extends FrameLayout implements AnimationListener {
private static final int       _RES_LAYOUT          = R.layout.widget_menu;
private static final int       _RES_ANIMATION_OPEN  = R.anim.anim_menu_open;
private static final int       _RES_ANIMATION_CLOSE = R.anim.anim_menu_close;
private static final Animation _ANIM_OPEN           = AnimationUtils.loadAnimation(G.gContext, _RES_ANIMATION_OPEN);
private static final Animation _ANIM_CLOSE          = AnimationUtils.loadAnimation(G.gContext, _RES_ANIMATION_CLOSE);
private static boolean         _canReceiveKey       = true;
private Ui                     _ui;
public WidgetMenu() {
    super(G.gContext);
    _ANIM_CLOSE.setAnimationListener(this);
    _ANIM_OPEN.setAnimationListener(this);
    View view = G.gInflator.inflate(_RES_LAYOUT, this);
    _ui = new Ui(view);
}
/**
 * open/close menu if menu key pressed, and close menu when back key
 * pressed. if this method act, it will return true other wise return false
 * as meaning no action occured.
 */
public boolean processKey(int keycode, KeyEvent e) {
    if ( !_canReceiveKey) {
        return false;
    }
    switch (keycode) {
        case KeyEvent.KEYCODE_MENU:
            if (getVisibility() == View.VISIBLE) {
                close();
            } else {
                open();
            }
            return true;
        case KeyEvent.KEYCODE_BACK:
            if (getVisibility() == View.VISIBLE) {
                close();
                return true;
            }
            return false;
    }
    return false;
}
public void retarget() {
    FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT, Gravity.LEFT | Gravity.BOTTOM);
    if (EnhancedActivity.getCurrent() != null) {
        ViewGroup parent = (ViewGroup) getParent();
        if (parent != null) {
            parent.removeView(this);
        }
        setVisibility(View.GONE);
        _ui.format();
        EnhancedActivity.getCurrent().addContentView(this, layoutParams);
        _canReceiveKey = true;
    }
}
public void forceClose() {
    onAnimationEnd(_ANIM_CLOSE);
}
/** play close animation and when close listener act, remove it from view */
private void close() {
    _canReceiveKey = false;
    startAnimation(_ANIM_CLOSE);
}
/** add control to view an show open animation */
private void open() {
    _canReceiveKey = false;
    setVisibility(View.VISIBLE);
    startAnimation(_ANIM_OPEN);
}
@Override
public void onAnimationStart(Animation animation) {}
@Override
public void onAnimationRepeat(Animation animation) {}
@Override
public void onAnimationEnd(Animation animation) {
    if (animation == _ANIM_CLOSE) {
        setVisibility(View.GONE);
    }
    _canReceiveKey = true;
}
private class Ui {
    public ViewGroup panel_about;
    public ViewGroup panel_setting;
    public Ui(View view) {
        panel_about = (ViewGroup) findViewById(R.id.panel_about);
        panel_setting = (ViewGroup) findViewById(R.id.panel_setting);
        format();
    }
    public void format() {
        panel_about.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {
                Log.i("LOG", "About Menu Pressed");
            }
        });
        panel_setting.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {
                Log.i("LOG", "Setting Menu Pressed");
            }
        });
    }
}
}
NEXT widget_menu.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/layout_root"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" android:background="#000000">
    <ImageView
        android:id="@+id/imageView2"
        android:layout_width="fill_parent"
        android:layout_height="2dip"
        android:background="#c84300"/>
    <LinearLayout
        android:id="@+id/linearLayout1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:layout_marginTop="4dip">
        <LinearLayout
            android:id="@+id/panel_feedback"
            android:layout_width="1dip"
            android:layout_height="wrap_content"
            android:layout_marginLeft="4dip"
            android:layout_weight="0.33"
            android:background="#330000"
            android:gravity="center_horizontal"
            android:orientation="vertical"
            android:paddingBottom="4dip"
            android:paddingTop="4dip" android:layout_marginRight="2dip">
            <ImageView
                android:id="@+id/ImageView01"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/ic_launcher" />
            <TextView
                android:id="@+id/TextView01"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="3dip"
                android:singleLine="true"
                android:text="Feedback"
                android:textColor="#ffffff"
                android:textSize="17dip"/>
        </LinearLayout>
        <LinearLayout
            android:id="@+id/panel_about"
            android:layout_width="1dip"
            android:layout_height="wrap_content"
            android:layout_weight="0.33"
            android:background="#330000"
            android:gravity="center_horizontal"
            android:orientation="vertical"
            android:layout_marginLeft="2dip" android:layout_marginRight="2dip" android:paddingTop="4dip" android:paddingBottom="4dip">
            <ImageView
                android:id="@+id/imageView1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:scaleType="centerInside"
                android:src="@drawable/ic_launcher" />
            <TextView
                android:id="@+id/txt_menu1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="3dip"
                android:singleLine="true"
                android:text="About"
                android:textColor="#ffffff"
                android:textSize="17dip"/>
        </LinearLayout>
        <LinearLayout
            android:id="@+id/panel_setting"
            android:layout_width="1dip"
            android:layout_height="wrap_content"
            android:layout_weight="0.33"
            android:background="#330000"
            android:gravity="center_horizontal"
            android:orientation="vertical"
            android:layout_marginRight="4dip" android:paddingTop="4dip" android:paddingBottom="4dip" android:layout_marginLeft="2dip">
            <ImageView
                android:id="@+id/ImageView05"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/ic_launcher" />
            <TextView
                android:id="@+id/txt_menu2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="3dip"
                android:singleLine="true"
                android:text="Settings"
                android:textColor="#ffffff"
                android:textSize="17dip"/>
        </LinearLayout>
    </LinearLayout>
</LinearLayout>
NEXT anim_menu_close.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
    <translate
        android:duration="200"
        android:fillAfter="true"
        android:fillBefore="true"
        android:fromXDelta="0%"
        android:fromYDelta="0%"
        android:interpolator="@android:anim/accelerate_decelerate_interpolator"
        android:repeatCount="0"
        android:toXDelta="0%"
        android:toYDelta="100%" />
</set>
NEXT anim_menu_open.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
    <translate
        android:duration="200"
        android:fillAfter="true"
        android:fillBefore="true"
        android:fromXDelta="0%"
        android:fromYDelta="100%"
        android:interpolator="@android:anim/accelerate_decelerate_interpolator"
        android:repeatCount="0"
        android:toXDelta="0%"
        android:toYDelta="0%" />
</set>
NEXT manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.uncocoder.menu"
    android:versionCode="1"
    android:versionName="1.0" >
    <uses-sdk android:minSdkVersion="7" />
    <application
        android:name="com.uncocoder.menu.G"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name="com.uncocoder.menu.MenuActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>