Ever heard of the color-matching puzzle game called Same? Smart Drops is similar to that, although a bit more stylish and complicated. It has excellent graphics, and a great innovation in terms of gameplay: Pieces can be moved in only one direction (indicated by an arrow on each piece). This rule forces you to think a lot more about every move and is a great way to keep the game from becoming boring and repetitive. Smart Drops supports Pocket PC 2002 and newer devices. A free demo is available, and the full version can be purchased for a reasonable fee.