The poll is flawed. Wouldn't it be much better for you to ask do you use Vista Beta, yes or no? Individually, how are we supposed to know how many others use it? And what if we all vote in contradictory ways. Plus, there are only a couple of dozen or so active regular users, never mind 1000.
And what if 241 people used it, what then?
Edit: poll changed, hee hee.