First published on TechNet on Sep 10, 2008
here with a quick blurb:
The latest version of the Ultrasound tool has been released to the web. This version adds support for monitoring FRS on Windows Server 2008 and allows the use of SQL Server 2005 for hosting the Ultrasound database. No other new features have been added in this version, and it does not monitor DFSR (the older version didn't either).