A new version of UNO is in development for WiiWare and DSiWare.
It will let you play against the computer or with up to six friends in online multiplayer mode. You can use the DSi's camera to customise your appearance in the game, or play as your Mii in the Wii version.
Other new features include the option to shout "UNO" into your DSi's microphone or communicate with other players via Wii Speak. There are various backgrounds and card designs to unlock and a variety of game options, including 7-0 and Jump-in.
UNO will be released for Wii and DSi on 6th November. In the meantime you could have a go at the Xbox Live Arcade version - read our review for the full lowdown.