I think there is nothing better then a great challenging puzzle with simple rules. BrickGenius looks like one of these games - a square gamefield, the bright-colored bricks, and built-in tutorial helps you to start playing. In this game player should builds the different mosaics by sliding bricks.

How it works:
1) The game board consists of 15 x 15 cells. When the game starts some bricks are placed on the board, while some cells remain black.
2) You get a certain amount of additional bricks. Your task is to cover all the black cells with your own bricks.
3) Once in a while, you will be awarded special bonus bricks that possess special qualities. It makes game even more challenging!

The game runs on any Pocket PC under the moon. It supports the newest iPAQ with square screens as well as the oldest PDA, like HP Jornada and Casio Cassiopeia. Now this game is available for Windows Mobile 5, Pocket PC 2003, and for Windows CE.