Rock Band PSP First Details: It's Amplitude

How will Harmonix squeeze the full band experience of Rock Band onto the instrument-free PSP? By making Rock Band Unplugged a spiritual sequel to Amplitude, Harmonix's critically beloved pre-Guitar Hero rhythm game.

First details on the recently announced Rock Band Unplugged from Primotech describe the peripheral-free game as a beat-matching rhythm title that uses the PSP's directional pad and buttons to play along with guitar, bass, drum and vocal tracks.

http://kotaku.com/5159653/rock-band-...-its-amplitude

I wish they would just make Amplitude 2.
That would be amazing on PSP and it would work perfectly.
L1, R1, O and arrows to switch instruments.

i was really hoping for a guitar addon to play with :(