I wanted to see how much Push would affect battery life. So yesterday when I came home, I charged my iPhone while cooking dinner. As soon as it was charged I turned off 3G, Wifi and GPS and left push on and took it of the charger. So I had dinner, watched some tv, went to bed, and never touched my iPhone. Today when I woke up battery was at 44%!!! I checked the usage stats and it said about 4h usage and 11h standby. During that time I got 5 emails and 3 text messages. Is the battery really supposed to drain this fast with push? I don't think my battery is defective since it lasts almost 2 days without push but push is really useful to me.