Mindboards

Given that the NXT can 'talk' with two other NXT using bluetooth, is it possible to set up a three way link between a NXT, PC and a bluetooth mouse? My idea is to build maybe a robot bulldozer, have the NXT program control the robot movements and the mouse tell it what to do. The PC could 'listen in...

If you wanted to lubricate the moving parts of a rbot what would you use?
Searching the forums someone mentioned molybdenum grease but this can be messy. Would Silicone or PTFE aerosol be OK?

Derek