Baxy-Z have a hands on impression of Green Day: Rock Band. Here's a portion of the preview below:
"With Green Day: Rock Band being the last band specific Rock Band release before a true third installment hits, Harmonix is releasing one final traditional approach. Featuring music that is geared towards a somewhat younger generation (sorry Ringo and Paul, your style might be classic, but not fresh), and 47 tracks to play, this might be something that all music game connoisseurs will enjoy, not just Green Day die-hard fans. So go ahead, grab a couple of friends and download the demo to rock out, and be sure to check out our review when the game releases June 8th."