being offered by Digital Rivers is authentic? They have the MS branding all over the place but a search on MSN and MS website doesn't really promote it, and a Google doesn't provide much except for hits from deal sites.
Yes, it is is genuine. Numerous technology sites have confirmed it:
Andre Da Costa http://adacosta.spaces.live.com http://www.activewin.com
Best, Andre Windows Insider MVP MVP-Windows and Devices for IT twitter/adacosta groovypost.com