Check out an app i made called Hierogrid, it is a fun little puzzle game. The full version is $0.99 but there is also a free version if you just want to try it out without all the features. Right now there is no ipad version and it is not selling too well, but if the sales were to go up im sure I could find the time for an upgrade to a universal app.
Well if you like sudoku Sudoku by Pennypop is one of the best puzzle games i've ever played. I hate all other sudoku games cuz they're so gross but this one is gorgeous trust me.
Blockwick looks like it will be interesting. Fuzzy Logic is impossible for someone like me that is color blind. I think that I would also have a color problem with Atomic Fusion.