[raverbashing]

> made cheap boards with identical functionality to a cellphone, few dollars a pop. And yes, they run Android.

With a camera, battery and 3G modem? Got any links?

[derefr]

I guess technically, you only need one cellphone (one camera + battery + 3G modem), and the other three sides could have been implemented as action cams connected to the phone over a USB hub.

One phone (or one phone’s SD card) may not have had the IO bandwidth to receive video from four cameras at once, though.