I wanted to bump this since joey and I have been Dominating the online world of the DS
The controls online are great! only problem we have is connection but its really not that bad most of the time it works but every now and then we'll get a bowser flash driving all over the map (one minute hes in the pit next to you and with in seconds he's already ahead by 3 positions) We've encountered one glitch where you can fall off the map and glitch through half of the course. Other then that its REALLY fun especially if your in a room of friends. Right now its only been me and joey but i'm sure we wouldn't mind more friends on our DS and in Mario Kart. So if you have a friend code message me! The only other game I have is Zelda: OOT but I do plan on replenishing my collection soon.