Right now 7 is the latest item in the "hot news room" where everyone is keeping tabs on it. Of course that has also left quite a bit of room for online news articles and blogs to come up at any time and every day with some new page.
Many who stayed with XP or went back to XP after only a brief run with Vista are now trying to dual boot if they got the betas or are now trying to find when/where they can download one. Yet the 64bit Vista Ultimate turned into a large crave there real fast especially for gamers wanting more and more memory.
You know they are now taking serious notice of the 64bit 7! As far as surveys? Those can only tally those who supply information in an online survey or some place like Steam in support requests.