Industrial Applications
Dust networks has a nice summary presentation highlighting their mesh network WirelessHART implementation with channel hopping, time synchronization, and high reliability 3-5 9s reliability. It uses frequency, temporal and path diversity.
What is interesting to me is that they are forecasting, albeit very vaguely, the IP addressability and RTLS integration of mesh network nodes. We should all be looking toward a future where there is open interoperability of sensor and location data.