wolog writes "American began testing a wifi in-flight entertainment system last month on two wide-body jets and will expand the testing among customers this summer. If all goes well, American said, it will be the first domestic (US) airline to provide streaming service on all Wi-Fi-enabled planes, starting this fall. Of course, the airline industry offers in-flight entertainment not solely to keep passengers amused but also to generate revenue. I'm curious how such system works. Having 250+ wifi clients connected inside a long metallic cylinder and doing some video streaming seems a really big challenge."