None...no sp on iPad 1,ipad2, or my new iPad 3....never scratched any of them...I like the smooth feel and the glass is pretty durable. Sent from my iPad 2 using iPF
None. Haven't felt the need to put one on my iPad1 and years later it is new looking. IPad is kept in an Oberon cover.
I have the full body Best Skin Ever. It was on my iPad 2 and now my iPad 3. The rest of those protective skins are overpriced. Its an awesome skin for the price. I highly recommend it.
None. I used my ipad2 for a year and no scratches on the screen. A couple scuff marks on the very edge from the cover but none what so ever on the video part. So why waste the money?