I know that iPad is not supposed to charge when plugged into the PC/Mac. However, Recently, after the 9.2 iTunes update, it has been. My iPad yesterday had 79% left on the battery. I plugged it in to sync it up and left it connected last night. This morning I woke up and it was at 100% It still says not charging on the iPad screen, but it seems to be slowly charging anyway. Anyone else experience this?