I have an iPad 3, and the new iOS 7 is pants. There's a keyboard delay / lag bug, and the general response to swipes is unreliable. There's plenty of discussion on-line about the issues, it's an iDisappointment that doesn't "just work". If I could downgrade I would, a big mess. One fix which seems to work is to go into Settings –> iCloud, and turn off Documents and Data In the Cloud. UPDATE: Here's a way back: Buyer's remorse? Here's how to go back to iOS6 while you still can.