There was a time in the not-too-distance past where having cell phone service meant signing one's life savings away for a minimum of two years. This indentured servitude to the almighty Carrier also meant keeping the same outdated phone and paying for every megabyte the plan didn't cover. Then. along came Net10. They changed the game, ripping up contracts and freeing the world from the tyrannical death-grip of the big companies. By renting towers, they can offer customers the same coverage, but at half the price. Best of all, customers can bring their own phone and get unlimited talk, text and data for as little as $35 a month.