Microsoft SQL Server 2008 (code named as Katmai) is now ready and the trial version is now available for download. See details here.
This major release after SQL Server 2005 (Code named as Yukon) has got lots of new features. Processing of delimited strings, C like math syntax, Intellisense in the SQL Server Management Studio (SSMS) are some of them. Read more here or here.
SQL Server 2008 Express Edition (Free version) is now available for download, but it's free Management Studio is not yet ready.
SQL Server never had a logo before. With this new release, now SQL Server has also got a logo. Read about it here.