This is a quick heads up for all of you doing Android development on Windows 7. A lot of people seem to have the problem where they think that the Android Emulator is not launching their application. The console window shows a message like:
[2010-05-16 17:33:11 - HelloAndroid] Waiting for HOME ('android.process.acore') to be launched...
and then nothing seems to happen!
Do not panic! Give it a few minutes. The emulator start up seems to be pretty slow on Windows. Eventually your Android app will start up.
The best advice is to leave the Emulator running all the time so you don't have to keep waiting for it to restart.
Alternatively, try it on a Mac or other Unix / Linux derivative...