Layoffs hit Activision after weak Guitar Hero and Skylanders sales

Game Informer has a story that Activision has cited weak sales for Guitar Hero and Skylanders and is planning layoffs. A source reported to Game Informer that the Minneapolis office could be facing significant losses or even closed. I guess in the revamped music wars, nobody won, as Mad Catz had significant layoffs after Rock Band 4 underperformed and now this.