The greatest party game of all time is soon available for the Nintendo DS lite. So you will soon be able to shred away with Guitar Hero – On tour. Using the included Guitar Hero Guitar Grip and pick-stylus, DS owners will be able to rock out to a huge list of tracks, including artists like Nirvana, OK Go and No Doubt. Guitar Hero: On Tour also features a Wi-Fi co-op mode and a Guitar Duel option….. “This summer”