Predicting the new boom in businesses is interesting. However, lets think about what businesses my go away because of today:

• Inmotion. Why would I buy an overpriced CD or DVD if I can't use it on board because the players are banned. And if they allow renting these items but not bringing your own on board I will personnally start a class action suit against any and all involved.
• Kiosks and stores in the airport selling power adapters, cell chargers, iPods, etc...
• Kiosks and stores selling ready-to-eat meals for flight purposes.
• Laptops! Why would anyone own a laptop if not needed for travel? Okay, some people travel by car but there aren't enough of them to sustain a computer company manufacturing laptops. I won't buy another laptop if it can't go with me on biz trips. I will pay less for a tower if it is going to stay at home.

I invite all to add to this list....