“The nice thing about a long-haul flight is you’ve got time to do a lot of different things,” said Jack Blumenstein, the chief executive of Aircell.True. You can read. You can watch the movie or, on a few airlines, enjoy live satellite television. You can work, eat, drink or sleep. And now, thanks to new technology by Aircell, you can get broadband Internet service on your laptop.But one thing you may not do is use that Internet hookup for VoIP, the voice over Internet protocol services provided by companies like Skype.To read this New York Times article in full, see nytimes.com/2008/09/14/business/14essay.html.