John Brownlee:

Available in many major cities, Zipcar is this wonderful service that allows you to rent a car by the hour with your smartphone. In my neighborhood, there are half-a-dozen Zipcars parked, just waiting to be scooped up for a quick Ikea run or jaunt to the grocery store. It makes owning a car largely superfluous, at least if you live in a city with good public transportation.
 
 But even though I live in an area with a lot of Zipcars, it’s still hard to find one that is unused on a busy Saturday or Sunday afternoon. But now Verizon has a plan on how to compete with Zipcar, and it’s a doozy: they’re going to allow anyone turn their own car into a Zipcar, rentable by iPhone or other smartphones.