I have a 4s with IOS6. Under 5.1 and prior backing up to iCloud would not happen more than once in 24 hours. So it if backed up at 9:00 pm last night it wouldn't again backup until 9:01 PM tonight (assuming on WiFi and plugged in). Since IOS6 it seems to back up when ever it is plugged in on WiFi and screen locked and waken up. So like in the AM I get up early to go to gym. So I check the phone for messages leaving it plugged in and then go get dressed. I notice, even though it backed up last evening it backs up again shortly after I checked for messages early in the am the last couple of days. Not that this is a problem but it is a change. Anyone else notice this?