As far as i know there isnt a upgrade option with the Beta Builds. It will require a full install.
How could you upgrade for free with the exception of the beta versions which act like trials? It has never been that way before...
Microsoft Corp. will offer free or discounted Windows 7 upgrades to users who buy Vista PCs after July 1, according to a Web site that has accurately predicted the company's moves in the past.
Well if thats true that would be awesome (I guess its thier way of trying to get back attention that they lost when users who adopted Vista early experienced early issues and gave Vista a bad rep by downgrading back to XP). But lets be realistic here for a second. Why would a company that makes a good 200+ for each license sold give a new OS away for free to exisiting Vista users? It doesn't add up...
As for what you posted Cool.
That offer is not valid for the Beta process right now. That isnt until July of this year.
Oh never mind this is different....
This is like Dell's Express Upgrade to Vista program, where new machines bought close to Win 7's release date are entitled to a free upgrade if users optin to take advantage of it. Most of the time you still haft to pay for shipping costs, but its still better than paying flat out for a new license.
This only applies to new machines purchased within that timeframe though, so Vista users like us are out of it unless we go buy new machines at that time.