You can now
FINALLY change the calendar AFTER you create an event in the calendar app. This is great, before you had to remove and recreate the event, just to change the calendar.
I'm happy, it run's really stable and I like the app folders, the new Mail app is
awesome, I want to turn off landscape mode( I
hate it) and I miss SBSettings, a lot.
SMS character count is one of those things that should have been there from iOS 1.0. It's really well done, only shows up when you type more that 3 lines of text.
Some apps crash, most of them work well (1:10 crash ratio on my apps).
Up-great progress was really smooth, this is pretty much a final release in my opinion, had no OS crashes or bugs what so ever.
I have a 3G iPhone so no multitasking for me
Internet tethering switch is present by default but disappears from the 'network' menu as soon as you turn it on.