Radeon HD 4870 X2
It's out, and it's reviewed by AnandTech!
Included in the review is the incoming graphics cards from AMD : HD 4850 X2 and 1 GB HD 4870 (we've got only 512 MB HD 4870 currently). Another surprise is the 1 GB version of HD 4850, which I suspect will make that card even more hit among gamers.
And I'm still here, banging 8800 GT in GRID! :)