I'll play too:
Off the charger around 11pm last night: 100%
Currently 5:39pm: 51% (18h, 46m, 39s since unplugged, restarted phone once, on purpose)
Android System: 69%
Display: 15%
Cell Standby: 11%
Android OS: 5%
I've played Angry Birds today, maybe for 15 minutes.
Haven't made any calls today.
Bluetooth, GPS, Wireless are all off. So is my Twitter sync and Gmail (I'm at work, can access gmail on my laptop)
Brightness is set relatively low and screen turns off at 1 minute.
ATK is running.