Fedora 15 Beta features the GNOME 3.0 desktop complete with its Shell and Mutter in supported configurations, LibreOffice, a new dynamic firewall, GCC 4.6 integration, and various other improvements.
The release announcement sheds additional light onto Fedora 15 Beta along with download links for the various flavors.
For those still in the Mandrake/Mandriva camp, Mandriva 2011 Beta 2 has been released as well. Mandriva 2011 Beta 2 packs Libreoffice 3.3, the Linux 2.6.38 kernel, GCC 4.6.0, systemd 24, etc. It also features some KMS changes we'll investigate and possibly report on separately in the near future.
The Mandriva 2011 Beta 2 release announcement can be found on the Mandriva Blog.