Eugenia: Good point, I'll try to get to looking at that other scanning program. The general idea is to write a gnome scanning library, with my UI being a frontend and with other applications being able to use the lib too. I hope we can make it possible to make this library not totally dependent on Sane if that is the right thing to do.
Fast User Switching
Every now and then someone mentions that it would be nice to have fast user switching in Gnome. The fact is that we already have it, it just isn't gooey yet. Right now you can run `gdmflexiserver` and use that to log in as a new user. Then you can use ALT+F* to change from one user to another. If you want security you can turn on screen locking.
So how to make this nice and gooey? We could add an "Actions -> Switch User" menu item that would run gdmflexiserver. Then we would need to make gdm aware of users currently logged in, and make it switch to an already open session before creating a new one.