Ultimate Jigsaw Puzzle HD (Android) app for $1.99
If you love jigsaw puzzles, you'll want Ultimate Jigsaw Puzzles on your Android phone. This puzzling app features more than 150 HD pictures for you to reconstruct. You can toggle between jigsaw or square shape pieces, choose from five difficulty levels, and set alignment and locking options. The pictures are categorized by Animals, Structures, Flowers, Miscellaneous, Challenge, and your own phone gallery. Anytime you back out of a game, it's saved so you can pick up where you left off. And when you're ready to demonstrate your puzzling skills to the world, hook up with the OpenFeint game community and compare yourself to the global leaderboards.