Source: http://gizmodo.com/5581281/android-22-dusts-ios4-in-javascript-performance
Testing stock browsers found within Android 2.2 (Nexus One) and iOS4 (iPhone 4), ars technica discovered that there's no comparison in JavaScript performance. But DoodleJump plays a bit smoother on my iPhone, which is 99% of what really matters. [arstechnica]