I can't live without Gmail Priority Inbox, which right now means I can't live with the Mail app in Windows 8.
Priority inbox essentially filters out messages that aren't important, and displays them in a separate list. The priority inbox list can also be found by searching in:inbox is:important. I noticed that in the Gmail API's extensions to the IMAP protocol have an option to filter messages by Gmail search commands, so there may be some way to achieve it through that.
What I'd like to do is either have some sort of priority inbox in the Mail app, or alternatively, only download important emails through the Mail app. Is there some way to do this with the mail app? If so, how?