There seems to be a mythical build for the N900 as well, although all I can find are some screenshots!

I have had a look on the gwibber site and the source does not seem to be easily downloadable, otherwise it may be worth a punt at running in a scratchbox environment.

The app seems to be written in python, using GTK libraries so it should hopefully be doable. If i can get the source I will see if it will work.

Be great if an experienced dev could take a look, aqs to be honest I don't have much of an idea!