Gameloft has acquired the rights to the Uno card game for, well, pretty much everything, but most importantly DSiWare. Chances are, the DS version will be similar to the iPhone release, which is apparently pretty good, but lacks the theme decks and online infrastructure (i.e. Xbox Live friends lists and such) of the Xbox 360 game.
Uno decks themselves are a classic, and the Xbox version has done very well, but will the success transfer to other platforms? Will people be as interested in playing online on the DSi as they are on Xbox Live, or does the online service make the game? Could it be a killer app for DSiWare?