Captain: Now you can scalp e-minis. http://www.engadget.com/2007/12/11/hands-on-with-betablue-jetblues-wifi-equipped-airbus/
You can have a privacy screen. http://www.amazon.com/3M-Privacy-PF14-1-Notebook-Screens/dp/B00006B8A9
Yeah, and right after that, someone with a packet sniffer in the seat behind you gets your trading account info. You think wireless on a flight is going to be secure? LOL! Even if it's "plug in your seat" which I doubt, it'll still go through a central router. What's the saying about a fool and his money?