Of course.With the million scratches and thumb prints on the screen two years later (and seeing the same on a friends DS who didn't buy one), it's probably the most essential add-on I've bought for 5 bucks.
GC controller.Because lack of a steering column, gas, brake, and clutch pedals as well as no six-speed make for a very horrible go kart racer frantically waving his right hands and both legs like he's some sort of loon.