Those builds wouldn't even qualify as beta at this point. They're pre-beta builds that someone has smuggled out of Microsoft.
From what I understand, they're fairly stable, but most of the new features from XP aren't complete and it's a memory hog due to all the debugging code. I think I saw somewhere that one of the latest builds takes around 1GB of memory just to run, so unless you have 1.5-2GB of memory (and a top end CPU to match -- basically a software developer's system), it wouldn't be worth it. Just be patient... It will be out some day. In the mean time you could always try Linux or one of Free/Net/OpenBSD. They're free, downloadable today, and it'll give you something new to play with.
I surfing around and have seen that we "coud" download a beta version of Windows Longhorn.
But I never succeed to find any valid download link.
Any one knows something about??
Thanks a lot
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