This news flash caught my attention:## Eco friendly wireless sensor system lets you monitor your windows
which then lead me to the good ol’ http://www.iis.fraunhofer.de/en/, the German research think tank that brought us MP3 (I actually own an MP3 license from them around 1997). There I found Fraunhofer has developed a network called s-net and trademarked it. Yes, this tehcnology presumably will be proprietary. My understanding is the Fraunhofer, which I believe to be a nonprofit institute, derives is funding from licensing its technology.
A search of this forum turned did not turn up s-net or Faunhofer so I thought people might be interested in learning more about the Institute and this new sensor technology. The journey to s-net start with: http://www.iis.fraunhofer.de/en/bf/ec/dk/sn/index.jsp which then links to a glossy PDF at http://www.iis.fraunhofer.de/en/Images/KOM_WSN_MAL-1000563-0202-1109_Wireless%20Sensor%20Networks_tcm183-84849.pdf which, in turn, then links to www.s-net-info.com which then takes you back to the prior link. I guess s-net-info.com is not ready for public viewing.