Get ready to call UNO on your phone! Play the classic card game, UNO™, that’s number one for fun with friends and family. Whether it’s in single-player or hotseat mode, playing UNO has never been so fun and easy, thanks to a brand-new gameplay system! Simply drag and drop cards using your finger on the screen for intuitive control and be the first to get rid of all your cards. The deck consists of cards of four colors: red, green, blue, and yellow. The ranks in each color are 0-9. There are three “action” cards in each color, labeled “skip”, “draw two”, and “reverse”. There are also special black action cards, “wild” and “wild draw four”. Dont know how to play ? This short video will get you up to speed with the basics.

• Games on Windows Phone 7: Make the most of every moment by connecting and playing with friends wherever you are—using your avatar and gamer profile to keep track of scores and wins. Always be in the game with the only phone that lets you take Xbox LIVE mobile.
• Classic rules and custom rules: All your favorite Action Cards are here: Wild, Reverse, Draw 2, and more. You can even customize your game with nine different rule sets including 7-0 and Jump-In.
• Single and multiplayer: Play against the A.I. or against your friends on the same device. ( no multiplayer :( )
• Challenges: Take on increasingly hard challenges in Tournament Mode.

via xBox.com