http://www.xda-developers.com/android/want-to-learn-how-to-program-for-android-start-here/
http://www.makeuseof.com/tag/write-google-android-application/
http://www.anddev.org/ [here are some tutorials – basic and advanced]
http://developer.android.com/index.html
http://developer.android.com/training/basics/firstapp/index.html
I have been waiting for 3 years to have a class smart enough to tackle this. I want to write iPad and Android apps.
We are going to do this after Christmas but I am going to put links here as I find them.