I've recently released a block puzzle game for iOS called Rota⋅Bloxx. Rota⋅Bloxx is a puzzle game that uses device orientation to alter gravity. The rules are simple but the challenge can be complex. You have to move specific Bloxx to a target location. There are 4 different types of Bloxx which each have their own behaviour. Plenty of longevity with 60 levels of ranging difficulty. Download here: http://itunes.apple.com/app/id421804871 * Retina display support. * Universal for iPad & iPhone. * Supports Game Center. * Social features built in. * Free level expansions planned for the future.