I have an iPad 2 and iPhone 4 both of which are usually placed on AP mode and plugged in before I go to bed. I always find it odd how snappy they both seem when I first start to use them, especially the iPhone. This snappy feeling seems to disappear throughout the day though. God my iPhone can be slow, my android friends take great pleasure in noting how it lags when scrolling through photos for eg. Anyone else find this?