I have blogged about the release Windows 7 for TechNet and MSDN subscribers, Now its available for Public at following link.

http://technet.microsoft.com/en-gb/evalcenter/dd353205.aspx

Its available in both 32-bit (x86) and  64-bit (x64). Microsoft is giving only 2.5 millions copies of Windows 7 and its available for very short time.  So grab it as soon as posible.