
Screenshots:

Videos:
http://youtube.com/watch?v=WlvMkvTLO8Y
http://youtube.com/watch?v=A_3Dpp2lwhQ
http://youtube.com/watch?v=S8epec2e5Mc
http://youtube.com/watch?v=bZJ4Fh6pUbo
http://youtube.com/watch?v=Gi_-LAeV4q4
http://youtube.com/watch?v=HybWtwQtfqA
New Battle Mode:
IGN announced the game would feature a new multiplayer game mode called Battle Mode.[21] The mode puts a twist on the Pro Face-off mode introduced in Guitar Hero II. Two players will face each other, trying to complete a song while successfully playing Star Power sequences to earn attacks that can be used against their opponents. Players will be able to store 3 attacks at a time and can activate them by tilting their guitars upward. If neither player fails the song, they will face each other in a sudden death segment. The attacks will include:
* Broken string: One fret button on the opponent's guitar will not work until it is fixed (by rapidly tapping the button).
* Difficulty up: The opponent will play the song on an increased difficulty for a short duration of time (except for expert difficulty).
* Amp overload: The fret board will shake and appear blurry, making the scrolling notes difficult to read.
* Whammy bar: The opponent will have to use the whammy bar before he/she can play notes again.
* Steal power: This will steal your opponent's power-up (this will be lost if used when the opponent has no power-up).
* Double notes: The opponent will have to play twice as many notes for a short duration of time.
* Lefty flip: The fret board will be mirrored, requiring the player to switch their handedness on the guitar.
Song Info:
On May 23, 2007, Activision announced 11 songs that will appear in the game. IGN revealed two more tracks on May 31. A trailer for the game revealed two more tracks on July 9. The list includes both cover songs (indicated by the phrase "as made famous by") and master tracks, featuring performances by the song's original artist.
* "Barracuda" - Heart
* "Cherub Rock" - Smashing Pumpkins
* "Cult of Personality" - Living Colour
* "Even Flow" - Pearl Jam
* "Knights of Cydonia" - Muse
* "Lay Down" - Priestess
* "The Metal" - Tenacious D
* "My Name Is Jonas" - Weezer
* "Paint It, Black" - The Rolling Stones
* "Rock and Roll All Nite" - Kiss
* "Rock You Like a Hurricane" - Scorpions
* "Sabotage" - Beastie Boys
* "School's Out" - Alice Cooper
* "She Builds Quick Machines" - Velvet Revolver
* "Slow Ride" - Foghat
* "Welcome to the Jungle" - Guns N' Roses
In addition, bands confirmed to be contributing to the game include:
* Queens of the Stone Age
* Another song by Velvet Revolver from Libertad
New Controller:

The New Controllers (based on the gibson les paul) will have wireless connections, the ability to remove the faceplate so you can draw or paint on it or buy other faceplates on it. On the wii the remote will actually be put in the guitar as a cheaper way of using star power.
Other Information:
Recently at E3 2007 they announced Slash (of guns n' roses) will be a final boss battle and an unlockable character.
Thanks To Wikipedia.com For Some of this Info
heres ALL the info on GH3
say thank you people.