Compared to my girlfriend's iPhone 4, my battery is crap!
I'll give it a couple weeks. If my battery doesn't get better, I'll be paying the Genius Bar a visit.
Left my good ol' 9700 for the iPhone 4S. Well, the actual order was a little different due to a bet I made with the girlfriend. 9700 -> Old Sony Ericsson phone -> iPhone 4S 16GB Black. :)