We released the first public beta of Red Hat Enterprise Linux 6 today. You might be able to get it from the official Red Hat FTP site, but it was giving “421 There are too many connected users” errors just now. You can grab this unofficial mirror of the 64 bit DVD ISO instead. The official press release is here.
There are probably a fair few bugs — although not as many as the internal alphas I was playing with last year!
The highlights from my point of view: supported stable libguestfs, libguestfs tools and V2V, OCaml compiler (not supported), virt-top, and hivex.
Edit: Excellent interview with Tim Burke in The Register which also covers the main new features.