Well, the airlines might want you to pay to check your bags, pay for your food and not serve you any drinks, but Delta has decided to offer an interesting new perk: Wi-Fi! Will it be free? Don't push your luck! Pricing will be comparable to hotel Internet access: $9.95 for flights under three hours and $12.95 for longer itineraries. It will only be available on domestic flights, and your cell phones will need to be silenced, but still, if you can't stand to be without your email, it might be an interesting idea.