>>pingsw+p
They've made posts in the android-building Google group when making GPL code drops. Here is the most recent, corresponding to GPL portions of Android 3.2.1.
>>guelo+c8
That's what Google used to tell us, but according to the guys of gpl-violations.org, this has always been a flat-out lie. Those "few other tools under GPL" are quite a lot and in no way negligible.