The non-profit Green Wi-Fi brings solar-powered wifi base stations to poor communities to allow cheap and reliable local networking. http://www.green-wifi.org
University of Edinburgh scientists have developed lightbulbs that flicker imperceptibly, sending data to other lightbulbs. Time invention of year 2011 http://ti.me/xCpvvg
New York City plans to turn 11,000 old payphones into wifi hubs, providing internet access, generating ad revenue, and providing communications during emergencies. http://bit.ly/1ofcQrX
An aerosol spray containing nano-capacitors can be used to add Wifi antennas to any surface. Wired: http://www.wired.com/business/2013/01/ff-seven-big-ideas/3/
Combination lightbulbs / wifi speakers help wire sound in a house quickly. David Pogue idea of year 2011 http://nyti.ms/vJi40E
New medicine includes a small radio transmitter which signals when pills have been taken. http://bit.ly/TlXsXt
Human bodies on aircraft block wifi. Boeing tests optimal implementation of wifi by moving around sacks of potatoes on test aircraft.
The Netatmo Personal Weather Station is wifi-enabled, works indoors and out, and is only $180. Popular Science Innovation 2013. http://bit.ly/1en8K8V