As I ran around frantically today trying to get all the information on the new Radeon X1950 Pro sorted, I noticed a couple of interesting things. Sapphire, as expected, put up a page about the X1950 Pro on their website, but they also put up a page about an as-yet-unseen X1950 XT. The card has 256 MB of memory, and apparently only 36 shader processors. From the card pics, it appears to be based on R580 and sport the same cooling solution as the X1900 XT and XTX. Not sure what's going on here, but I'll definitely be keeping my eyes open for more retail incarnations of this card. For more info head over to the Radeon X1950 XT page.
The second thing I noticed was brand spanking new WHQL certified Vista drivers from nVidia. I just installed them and all seems well. Unfortunately, nView and the nVidia control panel are still absent from the drivers. If you're running Vista you can pick up these drivers here: http://www.nvidia.com/object/winvista_x86_96.85.html
Last but not least, I noticed the addition of several overclocked versions of the 7950GT to XFX's and evga's websites. Though nobody seems to be making a big fuss over them, I find it hard to believe that their appearance on the same day as the X1950 Pro is a coincidence. You can check out those cards on the GeForce 7950 GT page.
UPDATE: Connect3D put up an x1950xt as well, and Sapphire corrected their page to say 48 pixel shader pipelines. So all seems to be well.