From the Technet newsletter:
Don't forget to save 19 March 2008 in your diaries - in case you missed it in the last newsletter. The official UK launch event for Windows Server 2008, SQL Server 2008 and Visual Studio 2008 will be on 19 March at the Birmingham ICC. Register your interest to receive priority notification of when this goes live.
Ah-ha. Another new operating system from Microsoft. Just cant wait..