This may be another first. I was able to run my first C# CompactFramework application on a Gumstix today. I used my Windows CE image and custom bootloader. I was able to connect to the Gumstix with Visual Studio 2003, develop a small C# application and even do interactive debugging! I had to jump through a few hoops not being a display based device, but it is possible.
 
Can't let you Linux people have all the fun.
 
With C# and Visual Studio as a development enviroment this platform rocks!!
 
David Vescovi