The Mono project supports ARM, so one should be able to build and use MonoDevelop on the Raspberry Pi. At least that's what I'm hoping!
2012-05-16
I got my Raspberry Pi yesterday (yay!) and can confirm that it is possible to compile and run .NET code (I tested with C#) using Mono and its MCS compiler module. This was all done via the shell and not a GUI. It would be great to get the MonoDevelop IDE running if at all possible though.
For those interested, you can install Mono by typing:
sudo apt-get install mono-complete
This also includes the MCS compiler module, so you can simply compile a .cs file thus:
mcs program.cs
and run it like so:
mono program.exe
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