Yes it’s a sad, sad day indeed, no more Guitar Hero! They also axed the True Crime franchise, but I don’t care too much about that one… apparently it’s all about Call of Duty now.

"At the same time, due to continued declines in the music genre, the company will disband Activision Publishing’s Guitar Hero business unit and discontinue development on its Guitar Hero game for 2011.  The company also will stop development on True Crime: Hong Kong. These decisions are based on the desire to focus on the greatest opportunities that the company currently has to create the world’s best interactive entertainment experiences."

Via: Industry gamers: http://www.industrygamers.com/news/activision-refocusing-on-call-of-duty-blizzard-killing-guitar-hero-true-crime/