Microsoft has announced that Windows 7 will be commercially available on October 22nd, 2009. In other words, that's the date when you'll likely be able to walk into a store and either buy a computer with the operating system preloaded or buy a boxed version of the software to install on your existing computer.

The company has been indicating that it hopes to have Windows 7 out in time for the holiday shopping season, and an October launch certainly fits the bill. But if you're in the market for a back-to-school computer this fall, it looks like you're going to have to stick with Windows Vista, XP, OS X, or Linux.

[via Engadget]