my understanding is that while Google is following the letter of the GPL and giving back their changes to the GPL'd code, they are not putting fourth the effort

my understanding is that while Google is following the letter of the GPL and giving back their changes to the GPL'd code, they are not putting fourth the effort to get those changes integrated with the rest of the linux kernel, so practically speaking, you aren't going to be seeing much of the android changes outside of android. http://www.kroah.com/log/linux/android-kernel-problems.html http://www.kroah.com/log/linux/android-kernel-problems.html