It's safe to say that mobile video is something most of us take for granted in this age of Vine, Periscope, and the rest of it. Not long ago, however, it didn't exist at all, and, when it finally arrived, it was pretty crappy, even on a sick top-quality RAZR phone.The format that enabled that early-days video capability is called 3GP or 3GPP. Crucially, the 3GP specification calls for very low-overhead data representation, which enabled multimedia sharing in a time where moving bits around involved a whole lot less resources and computing power than it does now. 3GP faced obsolesence circa 2008 as cellular technology entered its fourth-generation (4G), but it was only this past fall that Apple officially stopped supporting it in iOS.It's still easy enough to play the things, but less so to record them. As it turns out, YouTube contains a treasure trove of 3GP content representing a curiously isolated period of smart-phone prehistory. As part of a Rhizome-commissioned art project, Alex Taylor harvested an entire library of the things from YouTube, where they're now being presented at 3GTV.org.My personal 3GP trip was kind of bleak to be honest. Of the six or seven videos I watched, three were fights, as above (22 pixelated seconds with noise-show audio). Not quite sure what to make of that.