We've seen plenty of speculation on this date, but thanks to a quick email from Microsoft reps -- and a handy post on the Windows Blog -- we now have confirmation. According to the cats and kittens in Redmond, the Windows 7 RC will be officially available to MSDN and TechNet subscribers on April 30th, and will be made publicly available on May 5th. End transmission and bust out the champagne.Filed under: Desktops,