Here is my suggested design (please disregard the bad photoshopping):
Ok, since my original post yesterday I have decided that their design (pictured below) SUCKS! So I am posting my better design.
In it’s current form, you have your left hand on the fret buttons, and you strum the guitar on the touch screen with your right…AWKWARD!!! Here is my idea which I believe is genius:
Have a small wired attachment about 24" long that goes to a trigger like control that you hold in right hand (kind of like the wii nunchuck). Then you’d hold the DS in your left hand up so you can see the screen and you hold the extension control in your right hand down by your hip… and rock out. This way you don’t have to break too much from the guitar power stance. The extension controller could be small and wrap around a cord spool on the back of the unit when you are on the road.
Patent Pending (is that all I have to do, just say patent pending or do I have to do some legal stuff?)
Let me know what you think.