Microsoft’s OEM Division Corporate Vice President Steve Guggenheimer revealed during a keynote address at Computex 2009 in Taipei that Windows 7 will be in stores beginning 22 October 2009.
Microsoft will also start a Windows 7 Upgrade Option Program soon. The program enables participating retailers and OEMs to offer a special deal to upgrade to Windows 7 for customers purchasing a qualifying Windows Vista-based PC. The actual start date for the program will be announced when it is ready for consumers.
I am still using Windows XP on my main pc and is busy testing and playing around with Windows 7 Release Candidate on the old, and smaller, pc. So far I think Windows 7 much better than Vista.
BTW if you want to use Windows 7 download it directly from Microsoft. Apparently there are some virus/trojan infected versions available on other sites.