Band Hero is coming to the Nintendo DS this fall and, yes, you’ll be able to play drums and, double yes, there will be an actual drum peripheral for your DS. Nothing too fancy, just something called the “drum grip” that fits over the DS’ buttons and D-pad. Oh, and as luck would (not) have it, the drum grip won’t work with the DSi. So there’s that.
The included guitar add-on won’t work either — apparently the DSi is just too dainty to be able to support such accoutrements. So DSi gets you DSiWare and a camera and all that good stuff, while DS Lite gets you full Band Hero peripheral support. Oh, and Beyonce!