The release announcement for the Linux 2.6.28-rc6 kernel can be read here. It looks like we may see this kernel, which has mainline support for the Graphics Execution Manager and many driver updates, arrive in early to mid December.
Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.