Apple announced a new iPhone application for car-sharing service Zipcar at today's 2009 World Wide Developers Conference. The app will allow users to find, reserve and control zipcars from their phones. Yes, control.
Zipcar users with an iPhone will not only see locations and cars as little green pins and allow them to access information about the cars and make reservations. Better yet is a new feature that'll allow you to unlock the Zipcar from your phone rather than with the usual ZipCar ZipCard and even potentially control certain features of some cars, such as the horn, from the iPhone app. They haven't yet announced full control of the steering from an iPhone yet, but if they do it'll be at Gizmodo's WWDC live blog.