I've only used my phone for 1 hour and 30 minutes and it's down to 63% already! I've used it for very light web browsing and app store surfing and early today when it was at 100% I played Monkey Island for about 20 minutes and it was down at 94% which I figured wasn't bad but now it's just dropping like a rock. Push is turned off but 3G and Location Services are on but it really shouldn't drop this fast, should it? It's been on standby for 3 hours and 27 minutes. What's going on? Is this normal?