Having done a little bit of work relating to software, you can't really do what Microsoft seemed to be intending. I think they figured out that you can't impliment some features without rebuilding from the grund up.<br>They are sticking to the promise in a sense by not making you pay for it all and just allowing upgrades,(reply>), @Euan Thompson Gentoo is a rolling release distro, meaning no versions, just one continuous stream.<br>They started in '03 and are still going strong, same goes for arch,(reply>), @MilitantPacifist given the nature of Linux I am skeptical, but that is great if true.,(reply>), Gentoo and Arch have managed to get rolling releases down...<br>You just need a functional codebase with clean and modifiable code and it'll work.<br>But I doubt that Windows has either of that