The standalone components of SQL Compact 3.5 are now available for download. These components allows you to use and develop solutions based on SQL Compact 3.5 and ADO.NET Sync Services 1.0 without requiring Visual Studio 2008.
Microsoft SQL Server Compact 3.5 Server Tools
The "SQL Compact Server Tools" download does not appear to be available yet.
No sign of the "Data Migration Wizard", or reference to same in Books OnLine.
No sign of the Windows CE 6.0 cab files either...
The Windows CE 6.0 cab files are in the wce500 folder! From 3.5 Books OnLine: "Note The CAB files and DLL files under the folder %Program Files%\Microsoft SQL Server Compact Edition\v3.5\Devices\wce500 are also used to install SQL Server Compact 3.5 on Windows CE 6.0 and Windows Mobile 6.0 devices."
The file version of all the SQL Compact files in the web downloads are: 3.5.5386.0
The contents of %ProgramFiles%\Microsoft SQL Server Compact Edition\v3.5 after installation of these downloads: