NET Compact Framework with Visual Studio 2010? I have Visual Studio 2003, but i want change to one IDE.
For a longer answer. framework 1.* (compact or otherwise) is not really supported anymore. The lowest is 2.0. I would ask what you are using the compact framework becuase Microsoft has different directions.
Their phone is going to silverlight and XNA.
If you are developing for smaller devices the .net micro kit is now free and open http://www.microsoft.com/netmf/default.mspx
There are different directions depending on what exactly you are doing. This may be a time to evaluate what direction you want to take.