This is the good stuff:
Android 4.1 feels much smoother and faster than Android 4.0, which itself felt smoother and faster than the version the large majority of Android users are still using, 2.3 Gingerbread. Scrolling in particular has much less lag in pretty much every app I’ve used, and the overall feeling of responsiveness is just plain better.
Awesome, right? Well:
I wish I could say that Android 4.1 is on par with iOS on an iPhone 4S when it comes to its reaction to my finger’s taps and swipes — but iOS still takes the crown here.
It’s a great review all in all by Dieter Bohn, so read it here if you want to know all about JB.