Well, I have the least experience, as I have never been to an Apple store but the friend called me and asking me what to do whether to buy now or wait, he was in the store itself. I was taken aback when he said that as I was to quick to point out that if the guy in Apple store said it, then it should have been all over the various mac sites in the preceding days if not weeks.
So, he went ahead and bought it anyways, I didn't think much of it till I saw the rumor on macrumors.com and I was reminded and I just posted it here.