http://www.chiphell.com/2009/0728/89.html
Unfortunately the majority of the picture is covered by their enormous watermark. Thay claim the card has 2 6-pin power connectors and is slightly longer than the 2900XT.
Doesn't look like any other card I've ever seen, seems legit to me. I'd be interested to see bare PCB pics but otherwise may as well just wait for release.