Yes, backing up a course would be a nice feature to have. I have been looking into possible solutions in the meantime using MongoDB's 'mongodump' and 'mongorestore' commands.
The 'mongodump' command creates a single snapshot of the database, but I'm worried about repercussions with the authoring tool if I needed to import it back into place. I suppose that if I ever needed to reinstall the authoring tool, I would just name the new database the same name as the previous version, and then use 'mongorestore'. I'm trying to learn the ins and outs of 'mongorestore' to see how it reacts with data (i.e. what does it, or doesn't it overwrite when restoring).
In any case, it is a little scary thinking of starting a project without a stable way to back up the content.
As far as other items of importance go, I second Helen on the asset management. Similarly, it would be nice to be able to remove a theme altogether from the list of themes (not just disable it). On a previous installation I had several themes named 'test theme' that were forever there.
Thanks for all the good work!
Michael M.