MSDN labs - Developing a SQL Mobile Application with Visual Studio 2005 and SQL Server 2005
Sometime ago I have blogged about MSDN labs- SQL Server Virtual Labs - fully featured virtual environment for testing! and I recommend and encourage all of my users to use Virtual labs and webcasts - use them for a better practice on product. Similar to this fashion recently I have been using the labs to get better understanding on how to build SQL mobile application using SQL Server 2005 & Visual Studio 2005.
That helped to understand data-synchronization between a windows mobile device and SQL 2005 database. THis hands-on lets you to create the database and configure the relevant IIS features for merge replication. Similar to this a brief en-route to SQL Server Compact Edition is good that will enable the flexible build of using .NET compact framework application. This is a must requirement for SQL moile data application to synchronize for the data on both backend and web services application.
So for you as well if you need to get an understand then refer to Developing a SQL Mobile Application with Visual Studio 2005 and SQL Server 2005 link.