starting with android

After an Iphone and the Appstore, in between a Sony, now an android because of the IOIO microcontroller.

starting with Eclipse, the first android tutorial:

http://www.higherpass.com/Android/Tutorials/Writing-A-Basic-Android-Application/

and more:

http://www.higherpass.com/Android/tutorials/

but doing buttons and relative layout is not really JAVA....
for JAVA in android this link:

http://mobile.tutsplus.com/tutorials/android/java-tutorial/

After that, usually, one wants to bounce a ball:
http://www3.ntu.edu.sg/home/ehchua/programming/android/Android_2D.html
using a View with a ball inside, and showing extra possibilities.
After adding touch, all is wrapped up in an OOP fashion.