July 1st arrived and the next iteration of Maverick Meerkat has been let loose. This time around there's a major focus on cloud initiatives so very little excitement for us desktop folks. If you can consider all the usual package updates as "little", that is. A new GNOME, kernel 2.6.35-rc3, shiny new KDE, and updates across the board for all the existing packages are available
Btrfs is available on the alternate and server install CDs for Alpha 2. It's still very very experimental though. You'll need to manually create the required partitions including a separate /boot partition that doesn't use btrfs.
As per usual, use on production machines are highly not recommended for development versions. Even more so for an experimental filesystem. The list of known issues makes a good read before attempting any install or upgrade procedure to avoid unnecessary grief.
Maverick Meerkat Alpha 3 is out