I agree this makes a lot of sense from a Microsoft perspective, not so sure it makes sense from a Valve perspective. AFAIK it's still a privately held company,

I agree this makes a lot of sense from a Microsoft perspective, not so sure it makes sense from a Valve perspective. AFAIK it's still a privately held company, Gabe & company seem forward thinking eneough that I could see them telling Microsoft to take a hike no matter the offering price.