Mercedes-Benz is mbacing the iPhone for it's entire fleet. The new service will be available for all new Mercedes models. The mbrace service integrates the car with a remote control system via your iPhone or Blackberry. There is a special iPhone app that you can get for free by clicking here.

The system even has "Automatic Collision Notification" which is described as:

In the event your airbags deploy or your seatbelt Emergency Tensioning Devices are activated, Automatic Collision Notification will immediately relay your location to the Mercedes-Benz Emergency Response Center and attempt to establish voice communication between you and an mbrace Customer Specialist. If you request assistance or are unable to respond, the Customer Specialist will notify the appropriate emergency service provider and stay on the line until help arrives.

The mbrace service also features an SOS button that connects you to a mbrace Customer Specialist that has been trained to respond to emergency situations. Other features include stolen vehicle location assistance, automatic alarm notification, roadside assistance connection, and crisis alert.