not only am i not done with the work from yesterday, I discovered this morning that it should have been done on Sunday night.
oh well. late is late.
It works okay, but it doesn't seem to be robustly supported. (In November 05, they released 0.3 alpha, after nearly a year of silence.)
The key features I'm looking for are:
Update: looks like the Mozilla Calendar extension to Firefox manages to avoid the biggest Sunbird problems -- namely, that it isn't packaged for Debian or Ubuntu. And I can get Firefox to work just about everywhere.