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Didn't hear about any massive line ups to get the latest and greatest from MS.

Well, Windows 7 was the most pre-ordered item in Amazon history, so I guess that should count for something. ;-)
Also, people don't have to line up to order online from NewEgg or Amazon, or Best Buy, so the lack of lines at stores isn't any real indication of anything anymore.

But you also have to consider there are millions of people using the Windows 7 RC 1, which will continue to work until June 1st, 2010. While making both the beta and the RC free to the public might have been brilliant for getting people interested, it could possibly hurt release day sales, since a lot of people might just wait, since RC 1 itself is very stable.

I bet there will be a huge surge in Windows 7 sales next May, when Windows 7 RC 1 starts telling people their time is almost up.