Hi Ruben,
I think we are getting very close but not quite there yet. If you can help with testing and finding bugs to report the Mono team that would be great.
I have instructions starting here:
http://www.mojoportal.com/developmentonlinux.aspx
about how to checkout mojoPortal 2.x on linux, build with MonoDevelop, etc.
It works with Mono from svn and it probably also works with the latest Mono release.
Cheers,
Joe