The mote monitoring project now is minimally useful. I call it Nethead, and it lives on GitHub. Motes report RSS readings via CoAP to a Python-based Nethead process on the monitoring server. Nethead uses the pynag library to programatically create host and service records in a Nagios 3 instance, for the motes and neighbor links. Adagios provides an attractive Django-based UI for Nagios.
See the Nethead site for details and a roadmap. Contributors welcome!