Yes, you read the title correctly, SQL Server 2008. Today @ TechEd we announced the official name for the next release of SQL Server. Previously it was referred to under the codename Katmai, no longer.
Anyway, the first CTP (Community Technology Preview) is now available for download.
The article continues at http://blogs.msdn.com/dtjones/archive/2007/06/04/sql-server-2008-june-ctp.aspx