It's been all quiet on the XGI front for quite a while with most of their talent having been acquired by ATI last year, but Ian Romanick has announced today on his new blog
that XG40 DRM support has been added to the mainline tree. Graphics cards that use the XGI XG40 GPU include the Volari V3EX, V3XT, V5, and V8. Now you can use the open-source DRM and DDX from the FreeDesktop.org git and with the closed-source DRI can now have acceleration with the different XG40 graphics cards. Due to licensing restrictions from SGI, XGI Technology cannot open the code to the DRI driver.