SQL Server Compact 4 Preview is released

When you install WebMatrix, SQL Server Compact 4 is automatically installed with it. If you only want to download just the database, you can do so here:

http://www.microsoft.com/downloads/details.aspx?FamilyID=0d2357ea-324f-46fd-88fc-7364c80e4fdb&displaylang=en

The SQL Server Compact Team has a great blog post about it here:

http://blogs.msdn.com/b/sqlservercompact/archive/2010/07/07/introducing-sql-server-compact-4-0-the-next-gen-embedded-database-from-microsoft.aspx

This means you can download it and use it in your web applications right away (for test purposes of course since it´s a CTP)!