According to several torrent sites you can now download Windows 7 Milestone 1. Noone has been able to confirm the build though, since most of them seem to be empty ISO images. The full story is here: Windows 7 Milestone 1 Released To A Select Few - Leaked Already
There is no way, windows just released vista within the last year or so. i don't think they will be making a new system for a few years. I would be cool though.
Remember when longhorn leaked. This always happens a few years before the official release. Of course it is not going to be a stable OS to run.
Well. Vista will be "current Windows" only for three years, not for regular six years. Windows 7 should be released in the second half of 2009. Though it was originally planned for 2010. MS is accelerating generation cycle as it seems.
What planet are you on? It's widely known they're working on it. I strongly suspect they begin work on new OS's at the same time they release the current version (if not before). It's not like it's the same developers and their time is taken up with Vista. They have hundreds of development teams. And believe it or not they can work on projects independently.
Windows 7 is so pathetically unstable at the moment that you'd be mad to install it There's not much difference between it and Vista anyway