Comment Re:GNU GPL (Score 1) 260
It could also be completely closed source and proprietary. Because it's all Google's own code they can license it however they like (actually, I don't know if Google owns all the copyrights; I'm not sure how they handle contributions),
I thought the class libraries that are taken from standard Java are actually Apache Harmony. There may be modifications by Google, and there are plenty more libraries that are unique to Android, but they have not written everything from scratch.