The company’s groundbreaking DJ Hero expands Guitar Hero’s signature social gaming to all-new consumers with the addition of diverse music genres including hip-hop, R&B, Motown, electronica and dance. Introducing an all-new innovative turntable controller, DJ Hero transforms players into DJs who rule the club scene by creating original mixes of popular songs and music from the world’s most exciting artists and DJs.

From what we've seen of DJ Hero's turntable - and, granted, it's probably not all of it - it's got three buttons and a turntable. But what about rival DJ game Scratch's turntable?
As you can see here, in a marketing shot from earlier in the year that we've managed to get hold of (so things may have changed slightly since then), Scratch is not kidding around. Its got a "free-spinning, touch-sensitive turntable wheel", five coloured buttons and a small crossfader, all on a functional, if somewhat drab, hunk of grey plastic put together by (or at least licensed by) real turntable manufacturers Numark.
Also contained in the same document is a taste of the game's tracklist, which unlike Activision's messy attempts at covering all bases (which will probably please none), is targeting a specific audience: hip-hop and RnB fans. Eight songs were mentioned, and they are:
Flashing Lights – Kanye West
Let's Get It Started – The Black Eyed Peas
Peter Piper – Run DMC
Hot in Herre - Nelly
Milkshake – Kelis
Friends – Whodini
Party Like A Rockstar – Shop Boyz
Don't Sweat the Technique – Eric B. and Rakim
There are, at least in theory, supposed to be another 52 songs included in the final game (some licensed, others covers), which combined with the turntable will retail for $100. That is, if it's ever actually released...

Developed by Freestyle games.

1-2 players.

Turntable has two parts, the "platter" for the disc is the largest piece, it has three buttons on it, green, red and blue. The second piece, which is detachable to enable lefty mode, includes the face and directional buttons, a Euphoria button, an effects dial, and a crossfader.

Only three "scrolling" tracks, the outside two must be used with the crossfader in order to work.

Each track slides left and right to indicate the crossfader's direction.

Playing consistently will build up the Rewind Meter, which can be used to send the song back to an earlier section.

The tracks have up or down arrows showing which way to scratch the disc, and occasionally an X will be shown, letting the player scratch in either direction.

Tracks will have an overlay in some parts of a song, giving a player an opportunity to use the effects dial.

The Euphoria button is used to trigger Star Power.

Most of the game's songs will be unlocked at the beginning.

Freestyle microphone input is supported.

10 songs will support duet play with a guitar controller.

The following are all confirmed mixes created exclusively for DJ Hero

• Gorillaz "Feel Good Inc." vs. Marvin Gaye "I Heard It Through The Grapevine"

• Chuck Brown & the Soul Searchers "Bustin' Loose" vs. The Zombies "Time of the Season" (DJ Shadow Mix)

• David Bowe "Let's Dance" vs. KRS-One "Jack of Spades" (DJ Shadow Mix)

• Nivrana "All Apologies" vs. Rick James "Give It To Me Baby" (DJ Shadow Mix)

• Jurassic 5 "Jayou" vs. Herbie Hancock "Rockit"

• Tears for Fears "Shout" vs. Eric Prydz

Other Confirmed Artists

• Beastie Boys

• Beck

• Blondie

• Billy Squire