Porthole:AR Realtime Data Environment App(Powered by @Pachube)
via youtube.com
"It overlays realtime sensor data on your camera view and enables you to query the current status of sensor environments - to view quickly what types of sensor datastreams are present (e.g. light, humidity, electricity, air quality, etc.); what their current values are in relation to historical maxima and minima; how much they have varied over the last 24 hours; and graph the values of each datastream in 15 minute intervals over the last 24 hours."(via http://apps.pachube.com/porthole/)
