French start-up Oledcomm demonstrated the technology at the Mobile World Congress, the world's biggest mobile fair, in Barcelona. As soon as a smartphone was placed under an office lamp, it started playing a video.
http://news.yahoo.com/internet-light-promises-leave-wi-fi-eating-dust-135433368.html;_ylt=AwrC1zEKZ8xWrAkAtqjQtDMD;_ylu=X3oDMTBydDI5cXVuBGNvbG8DYmYxBHBvcwM2BHZ0aWQDBHNlYwNzcg--