Just installed iOS 4.1, the first thing I've noticed is that they've fixed the problem where if you had a Google account set up with ActiveSync it would force the 'Require Passcode' setting to Immediately, now you can choose the timeout.
mm first thing I've noticed is O2 changing to TESCO !!
thats my guess
My rant having upgraded to 4.1 is having to have an american spelt game "center" that I cant rename. Grrr!
Well Apple is an American company so things are going to be spelt the american way which ill add is the correct way thanks very much