unfortunately it ships with older 3.1 version and not 3.2 so for porting it's not the greatest. You can use clang without google's changes just fine though (just have to get the PIC and pie flags right). A few bugs fixed with C++ on android in google's version but nothing major. Or better yet, you can wait until the Apportable SDK is publicly released so your objective-c apps can run on Android. :-)