G4 has an exclusive video and interview with Harmonix about their newest game, Rock Band Blitz. According to the video, this game will use a standard controller, not a plastic guitar peripheral. Click on the link to head over to G4 and give it a look. G4 link
As a HUGE fan of both the Guitar Hero and Rock Band franchises, this gets me a little excited. Any new rock Band is good news, even a downloadable title. And this is a downloadable title. Xbox Live Arcade and PSN. So, be on the lookout for this sometime this summer. I know I will!