wikipedia is not reliable for information. Its a really just a forum without the discussion. Anyone can post anything on that site.
As far as the G80 goes, I plan for fall, with Vista. Anything about this GPU is pure spec considering its not posted on any of the site that make it. If its DX10 it will be amazing. Every waved their noses at the G71 before they were out, and look how much asss they kick for the amazing price.
Just wait for the **** thing to come out. If you bought something else just before it came out, sell it on eBay, and buy the G80. I'm sick of these "should I wait for the....." posts.