Last weeks lots of people contact me to ask about Mono 2.0 packages for Maemo, I have been working to get it done and I finished it some moments ago (03:02am now). So, instead of I big post what I did is updated the documentation on Mono's website.
For more information about how to get it working check:
you could be also interested to get more information about scratchbox:
And the mandatory screenshots:
Let me know if you found some problems.