I've read a lot (e.g., http://developer.ubuntu.com/packaging/html/, http://developer.ubuntu.com/resources/) but still can't figure out the following questions.
Is there cutting-edge Ubuntu package development environment as "constant" as Debian Sid? By "constant" I mean you just set your apt source once and will always remains on the leading edge.
I also read that it is recommended to build Ubuntu packages under the current development release, and the TestDrive is the tool for that. However, If I keep my system updated using apt-get, do I still need TestDrive? Also true is the recommendation to build packages in DebootstrapChroot or pbuilder.
Third, if all I'm building is my own tool and release into my own ppa, do I have to stay on the "bleeding-edge"? I'd assume it is OK not to, but it is also against the highly recommended suggestion.