As a flight commuter...
I would be happy for SMS and data services to work, but almost every plane I have ever commuted on is too noisy for a phone coversation. It is hard enough having a conversation with someone on the plane without the added satellite compression/delays making conversations harder. Do we really want the show-offs shouting the "I'm on the plane". If it really does become widespread then I will be investing in a phone jamming device to keep the peace!