Gametap's got a quick look at the new Guitar Hero sequel, coming out for the Mac later this year, and the biggest news is that they've got a date: the PC and Mac versions are shipping simultaneously with the consoles on October 28. Rock on! Apparently you'll also be able to use the mouse and keyboard to play (although, come on, Guitar Hero is all about that guitar controller that ships with the game), and this part is pretty slick, too: PC and Mac users will be able to play against (or with) each other online. Very, very nice.
No system requirements yet, but I'm guessing that, like Tiger Woods and Madden, this is going to be for the non-integrated video cards only. Still, if you've got the kit to run it, it'll definitely be a good time. Our sister games blog Joystiq has rounded up the entire setlist for the game, with YouTube links to every song in it. In fact, if you've already got Frets on Fire working, you can start practicing now -- you'll need it if you want to shred against me.