SQL Server Compact 3.5 B2 for Windows Desktop operating systems
SQL Server Compact 3.5 B2 for Windows Mobile
SQL Server Compact 3.5 Replication Server Tools
下面是文档，VS 2008 Beta 2 里安装的时候是没这两个文档的。
SQL Server Compact 3.5 Documentation
Sync Services for ADO.NET Documentation