i have noticed a significant reduction in battery life for my ipad2 after updating to IOS5. the notable thing is that it seems to be losing a lot of battery through background usage while in "stand by" mode. ii've followed this issue in the iphone 4 forum where a lot of suggestions have been made (reset network settings, turn off all notification/location services, turn off bluetooth, turn off icloud backup, turn off ping), and in the end i have gotten my Iphone4 back to where it was battery life wise for iOS4. that hasn't been the case for my ipad2. i lose about 10% per day minimum (it was up to 25-30% before doing the things listed above in parentheses) when nothing is running in the background (ie, reboot and just let it sit there) i'm tempted to refresh the whole things from scratch but that of course will wipe out things like my scores for Asphalt Adrenaline and other app info. :\ anyone else have this problem? suggestions beyond what i have listed above? thanks!