Hi, I got the iPhone 4s(ATT) on release day in October and now my company just switched from Blackberry to iPhone 4s(Verizon) this week. Battery drain with minimal use of location and wifi, turn off automatic time and date, (and email checked every 15 minutes) was pretty noticeable on ATT iphone. I got the Phone suite Elite 2100 mah charger just because of the battery drain. I was using ATT today just listening to podcast and battery drain was 25% in 2 hours. Meanwhile, Verizon idle was 98% in same 2 hours. I used it to make calls for about 30 minutes today and at the end of the day it was about 77 percent. I have settings same on both phones including 2 emails adresses. I dont have the exact scientific tests but I was just surprised that the power consumption(even idle) is quite different. Anyone else notice this.