More information:
Forgot to add above that the Google.com site defaulted to Google, Philippines. Speedtest also calculated the closest test server as being in Atlanta for the first part of the flight and San Francisco for the second. This probably just indicates the location of the ground station serving the satellite feed or something, but was interesting.
Regarding the use of two-way streaming audio and video as in Facetime, Skype etc: Even if they don't explicitly block the ports for those services (which I assume they do), people might find them unusable because the huge latency to/from the satellite (not to mention that your seatmate might get a little tired of hearing you chat for hours on end!)