Hi, surprised I haven't seen any mention of this yet, but according to here: GMA500 staging driver Alan Cox has cobbled together a driver.
Original thread here: http://thread.gmane.org/gmane.linux.kernel/1103793This is an initial staging driver for the GMA500. It's been stripped out
of the PVR drivers and crunched together from various bits of code and
Currently it's unaccelerated but still pretty snappy even compositing with
the frame buffer X server.