In need of a new computer, but holding out because you don't want to be saddled with a last-gen OS when Windows 8 lands? Worry not potential consumers, Microsoft plans to offer a cheap upgrade path to its latest and greatest if you buy in now. Well, not now, but soon. Starting June 2nd Redmond will offer a $15 upgrade from Windows 7 to Windows 8 Pro. Mary Jo Foley first reported the deal last week, but wasn't able to put a price on the offer. Now, Paul Thurrott is filling in
