That's on my iPhone 4 and I can replicate it anytime. I don't use iCloud & WiFi Sync at all, my e-mail is checked every hour and all location services are ON except the Time Zone Setting. I can even say that on iOS 4.3.3 my battery performance was not as good as it is on iOS 5.0. I have to say that my iPhone is 6 months old. Could that all "Batterygate" thing exist because of not fully activated batteries on new iPhones 4S. That screenshot was taken during a small vacation I took with my family, not too many calls were made, mainly web surfing and e-mails.