Engadget tours Gogo's flying test plane, tries its improved ATG-4 in-flight WiFi (hands-on)

Gogo's test plane isn't your typical jet: it seats just nine passengers, and there's no bathroom; just a closet in the back stacked with networking gear. The company, easily the biggest name in in-flight WiFi, uses the aircraft as a flying lab, where it can test everything from throughput speeds to the log-in experience. It's a small plane that flies out of a small airfield, Aurora Municipal Airport in Illinois, and it's normally just Gogo staffers onboard. Today, the company invited a few repor...