It went largely unnoticed, but one of the biggest changes of the November Android NDK release was the addition of LLVM/clang to the toolchain. This was primarily added to reduce issues when cross-compiling iOS apps to Android.
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. :-)
