I work at Target, and work even less in the Electronics area, but it just so happens I was there tonight. As I was working, I happened to glance at one of the T.V.'s mounted over the games and saw a promo for GH2. As it was wrapping up, it touted a, "TARGET EXCLUSIVE GUITAR GOD MODE!!!" I stood there mouth agape. "What is this? It can't be. Surely they(management) would have mentioned it at some point. They always mention promos and exclusives."
So, if anyone knows anything about it, especially someone at Harmonix, could you elaborate? I'll try to get a picture of it tomorrow.