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"Last July, Konami filed a lawsuit against Viacom, parent company of Rock Band developer Harmonix, claiming the game infringed on patents it held for music titles utilizing guitar controllers. After six months of silence, Harmonix has decided to sue back, claiming Rock Band actually improved on Konami's patents -- and Rock Revolution is, in fact, infringing on Viacom patents. Confused yet?The gist of Harmonix's counter-suit involves a claim Rock Revolution is actually more like Rock Band than Konami's GuitarFreak franchise, the design of which is likely the basis of the original suit. We naturally picture all of this unfolding Phoenix Wright style, but the reality is most likely far, far less interesting. We'll let you know if any sparks begin to fly.[Via Shacknews]"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2009/02/13/konami-counter-sued-by-viacom-over-rock-revolution/>