Does anyone else notice the speed enhancement with 5.1. This is especially noticeable on the iPhone 4. Apps seem to open faster, and Safari loads pages slightly faster!
I agree with the OP - it definitely is quicker with 5.1 in all aspects. I don't really notice much of a change on the iPad2, but certainly do on the iPhone4.
Apps coming out of "sleep state", or whatever it's called, is decidedly faster. Don't have to wait 1-2 seconds for the screen to become responsive now.
Actually I've noticed this. Certain wipes and transitions seem a little faster. Maybe they adjusted the animation curves or something? Slightly less stuttering on the home screen, too.