I have now noticed that xkeybinding shift-backspace to Esc, which I adopted myself, interferes with microB, where this is a key binding for "forward". In fact, also Ctrl+Space and Ctrl+Up for full-screen toggles are already in use according to http://wiki.maemo.org/N900_Shortcuts_and_Gestures (fortunately Ctrl+. is not occupied yet!).

However, the Fn+Shift+key combo is completely free, so I think I for one will use that for all the special Easy-Debian key bindings. Since Fn+Shift+Backspace is already F12 (being the 12th key in the upper row), I think an easy to remember key binding would be Fn+Shift+LeftArrow. So I would propose that the next version of Easy Debian switches over to the Fn+Shift convention for additional special Easy Debian keys, and perhaps also the full-screen toggle.