Hardware for Gnome3

With the advent of Gnome3 not far around the corner and with a huge array of different desktop and laptop machines with many different chipsets and graphics cards in use by the community, I wondered if there is a list of likely supported hardware that will have a reasonable chance of being able to successfully run Gnome3 when Fedora 15 is released? I know that we have the Gnome 3 alpha test days running (as of yesterday) but presumably those running the tests have hardware that is already expected to work with the new desktop experience with 3d support. It would nice nice if a user could run a quick probe of their current hardware and then go to a list of kit that is expected would be likely to run, or definitely won't run, Gnome 3. Is there such a list? Of course one can run commands to see if 3d support is in principle available on your own machine - but in the past having this information has not been a guarantee of getting a working 3d machine for eg desktop effects, even though 3d is "nominally" available. Clearly nouveau has been under heavy development in the past year or two, and ATI support has been accelerating too..... at what point does the experimental mesa stuff become stable enough to use for prime time? Would be nice to know. In the meantime it will be very valuable to see as many tests as possible being executed on as wide a set of different types of hardware as possible for the gnome 3 test days to maximise the chance that the largest number or users will be able to see a working desktop as soon as F15 is installed after release. -- mike c