I am not sure if it was just today, but I noticed something was not right with my reviews, even though skritter seemed to be syncing. Anyway I had been messing around with the time on my ipad a couple of days ago, but had reset it to the correct time. Think I lost a couple of hours skrittering today after I reinstalled due to this sync error. Seems fine now.
Basically I wanted to know if changing your devices time would cause sync problems?