greenBytes enhances ZFS
A startup called greenBytes has come up with an enhancement that would enable ZFS to save more power on Sunś x4540 line. You can find more details at http://storage.blogs.techtarget.com/2008/09/15/suns-thumper-finds-a-new-green-friend/.
This news validates the Open Source approach Sun has taken to storage. I bet more such startups will emerge driving down the cost of storage similar to the way x86 servers brought down the price of servers.