Windows 7 Editions Compared

Here are the official Microsoft pages, which are a bit opaque:

http://www.microsoft.com/windows/win...e/default.aspx

Wikipedia has a good chart here:

http://en.wikipedia.org/wiki/Windows_7_editions

And there is plenty of info here:

http://www.winsupersite.com/win7/win7_skus_compare.asp