Mobots seems handy. The closest application I am aware of is Shepherd. It is currently in development but the idea is that based on different triggers (like time of day, location, device being charged, battery low etc) the N900 will automatically do something, which you choose. If I understand correctly that is basically what mobots does?

You can read about Shepherd here:
http://talk.maemo.org/showthread.php?t=31524

The programmer, Attila, is interested in ideas and feedback, so maybe you could mention mobots in the thread? If you don't, I will.