Difference between Dot net 2003 and 2005 framework

a lot.  the 2005 framework which hosts the .NET 2.0 CF has more controls and properties for these controls for example.  programming in NET1.0 CF  2003 is painful.  The only good thing about 2003 is that is in the ROM of all mobile devices that host the Mobile 5.0 and 2003 SE platform.  That means that you don't have to deploy it with your .NET app.  Visual Studio 2005 does provide support for developing both .NET 1.0CF and .NET 2.0 CF.  It also has some easier deployment solutions.

best,

-Mike