For me, and many of my co-workers, smart phones are simply too fragile. Physically, they can't handle our work environment (industrial plant). Those that do buy them are the ones that never leave the office. ;) If they make one that is armored for rugged use, I might consider one. Being able to VNC, etc. via a smart phone sized device would be very nice.

The Oregon Department of Fish and Wildlife has been setting cameras triggered by infrared motion detectors for years. They are used to photograph animals that use certain water holes and other areas where there is interest in animal movements. They are unmarked and generally well hidden. Many outdoors folks are photographed by them every year, and altough I'm not sure what is done with the data it would be interesting to contact the ODFW and see what legal steps they take to cover themselves.