http://www.macrumors.com/pages/2006/08/20060808153337.shtml

Parallels spokesman Ben Roudolph has revealed that Parallels is working to support 3D acceleration in an upcoming release of the company’s flagship Mac product, Parallels Desktop for Mac.
What’s more, Parallels Desktop for Mac will see “fast 3D graphics support,” presumably to help cater to gamers who want to run Windows games without having to reboot their machine using Boot Camp and a separate Windows partition.—via MacWorld