Has anyone looked at this as a helpful tool? It looks like it they are working more of the 'cool factor' than being practical. Might be good for the iPad 
http://www.crutchfield.com/p_579KIWIFIP/PLX-Kiwi-Wifi-Diagnostics-Transmitter-with-Sensor-Support.html?search=PLX+Kiwi&ssi=0
http://www.crutchfield.com/p_579KIWIFIP/PLX-Kiwi-Wifi-Diagnostics-Transmitter-with-Sensor-Support.html?search=PLX+Kiwi&ssi=0