GamesRadar - PS2 Newshttp://www.gamesradar.com/ps2/news/Amplitude 2 possible for PS3. Amplitude might come to PSNhttp://www.gamesradar.comhttp://www.n4g.com/News-261720.aspxJan. 17, 2009, 2:45 p.m.Developer: Harmonix Wanted Arcade 'Frequency,' 'Amplitude'http://www.gamesradar.comhttp://www.n4g.com/News-244713.aspxDec. 11, 2008, 8:30 a.m.Sony Denies Axing PS2, PSP Online Servershttp://www.gamesradar.comhttp://www.n4g.com/News-132041.aspxApril 7, 2008, 7:49 p.m.Introducing The MTV Rhythm Game Track Finderhttp://www.gamesradar.comhttp://www.n4g.com/News-98065.aspxJan. 9, 2008, 9:30 a.m.EA to Publish Next Harmonix Gamehttp://www.gamesradar.comhttp://www.n4g.com/News-28311.aspxMarch 7, 2007, 1:20 p.m.