Update:
For some reason, my N900 doesn't like the dbus-scripts package. I think I may have messed something up in apt whilst trying to get the new Qt working

For now, I think I'm going to wait until after PR1.2 is released, so I can just do a reflash only once. After PR1.2 is released, I have a few apps I'm going to get finished-- including this one.

My thought is to have a configurable "Actions on Power Plug" dialog. This will allow you to select the actions to be performed when power is removed or restored. Such actions will include: dimming the screen (my N900's screen is too bright at night), disabling vibration, enabling the ringtone, and running custom commands (like launching a fullscreen clock, if someone makes one).

Hopefully PR1.2 is released soon!