Linked by timl on Sun 5th Jun 2011 16:25 UTC
"Microsoft and Nvidia have an agreement in place that spells out terms relating to a possible acquisition of the graphics and mobile processor manufacturer, regulatory documents indicate. The deal gives Microsoft the exclusive right to match any offer for 30% or more of Nvidia's outstanding shares by a third-party." The agreement appears to be over 10 years old, dating back to the time of the contract for the GPU of the original X-Box. It has likely gained relevance again now that Microsoft allegedly wants to more closely control hardware of tablets running its upcoming Windows 8 OS.