GE is installing the Current platform as part of a $30 million upgrade to San Diego's lighting system. The 14,000 LED fixtures will reduce energy costs in the city by up to $2.4 million, and the 3,200 "CityIQ" sensor nodes with cameras, microphones and other sensors will add "internet of things" connectivity. AT&T will act as the data carrier "and provide highly secure connectivity" for the San Diego deployment, it wrote in a press release.

As for concerns about security, the video footage from the cameras apparently isn't as detailed as security camera footage. "It's anonymous data with no personal identifiers," a spokesperson for San Diego's Mayor told Reuters.

Cities will be able to use AT&T's M2X and Flow Designer open platforms to do traffic monitoring, parking optimization, gunshot detection, air quality monitoring, weather alerts and more. They'll also be able to open up the platform to citizens, developers, entrepreneurs and universities to "create new revenue streams, drive economic development and make [cities] better places to live, work and play," GE said in an earlier news release.

AT&T and GE aren't the only companies tackling the (lucrative) city street lighting markets, of course. Another firm called EnGoPlanet has installed solar panels and sensors in Las Vegas streetlights, for example. However, AT&T and GE have enormous reach and resources that will probably help them get into many more cities.