TomTom Developing GPS Module for iPhone?
Engadget posts a photo claiming to be an upcoming TomTom GPS module for the iPhone.
The poor quality image depicts a small add-on device which plugs into the bottom of the iPhone. Meanwhile, the screen shows a typical GPS view.
The validity of the photo itself is difficult to assess, however, its been rumored that select developers may already have access to Apple's upcoming SDK. It's conceivable that Apple has selected key hardware manufacturers to ready new iPhone accessories.
Update: Said to be fake.