Despite some pretty deep cuts in Microsoft's gaming divisions, the company still contends Windows is a "first class gaming platform."
Moving ahead, Microsoft will continue to invest in Windows as a first–class gaming platform through great Windows out of box experiences, our online gaming services including Games for Windows – LIVE, MSN Games, and Messenger games, and through new games for Windows developed by Microsoft Games Studios," a Microsoft spokesperson said. "Our Windows gaming service efforts will be led by General Manager Ron Pessner, who is joining Microsoft’s Interactive Entertainment Business. He comes from within Microsoft’s Entertainment & Devices Division.
Source: Kotaku