Guitar Hero 4, Rockband ripoff confirmed? Options

[Crushinator]

Long story short:

• Full band set up like Rock Band, Guitar, Bass, Vocal, Drums
• Character creation/customization inspired by THPS and Tiger Woods.
• Create-a-song mode and "Freestyle" mode where you can play your own tunes to songs already in the game.
• Drum controller has 6 buttons, 3 toms, 2 cymbals, and the bass pedal.
• Activate drum Star Power by hitting both cymbals at once to begin a drum fill.
• No more licensed guitars, but you can make your own custom guitar now.
• Your custom character can freely switch between all 4 instruments
• Full bass career mode
• Nooby "strum only" Rhythm guitar mode for little kids or old people who want to join in the fun but suck.
• You can earn cash playing online (Online career mode confirmed?)
• Van Halen, The Eagles, Linkin Park, and Sublime confirmed on the songlist (and Dream Theater?)
• Going for a wider variety of music, not mainly sticking to metal like the previous GHs.
• Every song is a master track, no covers.

[Crushinator]

Looks like GH is still sticking with the "hard as fuck" gameplay .

The question I have about this compatibility with the RB instruments is clearly, the drum pad. RB is down one input from GH:WT. How is that supposed to work?