I raised a question about getting applications running on the Mio C310x here.

Got a neat answer.

HPC versions will normally all work. You can often get PocketPC apps running too by adding the required dll's. You can open the .exe of the app with a HEX editor and look for the xxx.dll files or you can also offload a pack of dll's in the \windows\ directory and see if it helps.

Xania's dll pack - download

We had listed a ton of WinCE compatible apps >> HERE << in the FRA forums (Pay Attention to Section 9. MiniFAQ), if anyone is game for maintaining a list, in the first message of this thread.

Some nice utilities >> HERE << - task switching, picture viewing, window resizing, etc...