Microsoft buys Microsoft-Sony.com domain

A quick WhoIs domain search and a bit of reading shows that Microsoft Corporation has purchased two domain names with Sony in them. The following screenshot is taken from the link above, where it clearly states that Microsoft officially owns the domains Microsoft-Sony.com and Sony-Microsoft.

 

Could this mean a partnership between two of the largest computer entertainment developers? Or is this just another ModernWarfare3.com (for those of you who don't know, it redirects to Battlefield3.com)?

The domain is purchased through 2012, but redirects to a Bing search for Microsoft-Sony. There is no doubt that the purchase of these domains are official; the question is what is to come.