http://blogs.msdn.com/b/zxue/archive/2012/04/16/windows-8-editions-windows-8-windows-8-pro-and-windows-rt.aspxWindows 8 is still in beta (consumer preview). You can download Windows 8 Consumer Preview here.  When Windows 8 is released, there will be three editions. For PCs and tablets powered by x86 processors (both 32 and 64 bit), we will have two editionsen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)