[51Cards]

I believe 3.0 will be the big UI overhaul. In looking at the change list in 2.3 it seems to me they really focused on cleaning up core issues with the OS. You'll see most of these listed under categories like "for game developers" but I expect they are also in the process of rewriting the UI to use all the new low-level functionality as well.

[dave1619]

I'm looking forward to the 3.0 overhaul. If Android can look and function more naturally/elegantly than it can build on it's momentum. Also 3.0 should also be a universal build for phones and tablets. Its going to be interesting to see Android 3.0 tablets.