It's been over a year since Rogue Amoeba came out with Airfoil, a program that lets you stream music from your computer to an Apple Airport Express using any application, rather than just iTunes. Unfortunately for Windows users, Airfoil was Mac-only, leaving the Airport Express as an iTunes-only device on Windows boxes. However, that's now changed, as Rogue Amoeba has launched a beta version of Airfoil for Windows, which the company says will work with most Windows media programs, including Windows Media Player and Real Player. Of course, in the past year, Airport Express has had a lot of competition on the Windows streaming front, with devices like the Linksys Wireless-G Music Bridge undercutting it on price, and offering full compatibility with most Windows programs out of the box. But if you're a Windows user with an Airport Express and you've grown frustrated by its limitations, here's your chance to set it free.