i'm running 3rd- party apps on AA 3.1.58 + GPS 12.5.29 for 2-3 weeks now. I'll release an unlock apk when i get around, but for now i prefer to wait for google to lose interest and release a new version to see if they block this method as well.
Crash should be fixed, should work with gps 12.6.85 and AA 3.2.58.
Mirror + multitouch input (root) + minilauncher, (no back key yet):
Only aamirror whitelisted for now