Brilliant version of the oldskool 8puzzle
While this game or App loos rather boring at first, once you dig into it and try the various features it offers, it slowly turns into something brilliant. The entire game is 3D, features 3 differently styled boards, different resolution and puzzle faces (numbers, letters, images). The app is free to play. In order to use your own photos you have to make and in app purchase but it's worth it as that's the most entertaining bit. You may use any images on your iPad or take a photo (in the camera app) and use that. It's easy. Once you completed a puzzle (there's an on-screen help which overlays numbers over your photo to help you solve the puzzle) you can post it on Facebook. It's actually a quite stylish way of sharing photos over Facebook while having a good play too. I recommend it to all iPad owners. Especially new iPad owners, as it's enhanced for retina (razor sharp 3D with anti-aliasing and all the techy bits you can imagine).