Android has basically been a three legged horse in the speed/performance because of the Dalvic runtime anyway. Who cares about 32/64 bits. When Android comes out with it's new java compilation model and runtime (ART) in version 5 and claims that your phone OS and apps can now execute twice as fast, where does that leave Apple in the performance race?

All of this does not really matter anyway. iPhone has always had better performance than almost every android phone. This has not saved them from losing massive market share. The PC/Mac history is repeating with Android/IOS.