Windows 7 the most popular OS in the beta phase has been released in technet downloads you can download it if you have technet subscription https://technet.microsoft.com/en-us/subscriptions/securedownloads/default.aspx
This new release will be available in Microsoft public web site 5th of May http://www.microsoft.com/windows/windows-7/default.aspx
I am currently downloading this version and hopefully to have the time to make a technical review.
Mahmoud Ibrahim (admin)