The British Gaming Blog has the first video of Guitar Hero: On Tour for the Nintendo DS. It's hard to describe exactly how the game is played, but the Guitar Accessory plugs into the GBA Slot on the bottom of the system and the system is then held sideways. It'll be interesting to see how well this works, obviously from the hokey video the folks seem to be having a good enough time.
Guitar Hero: On Tour will have local wi-fi co-op, but not much else about it can be confirmed just yet.

CommentRelated Games
Platform: Nintendo DS
2-Player LAN/Ad-Hoc Co-Op


Uncharted 2: Among Thieves on Playstation 3
Call of Duty: World at War on Wii
AI War on PC
Castle Crashers on Xbox Live Arcade
Pixel Junk Monsters on Playstation Network
View the top Co-Op Games by platform including our family friendly list!










Resources
