The Apple iPhone seems to be the gift that keeps on giving. When Steve Jobs first announced the device nearly one year ago, we were stunned by its beauty and enthralled by its multi-touch interface. As modders and hackers got their hands on the handheld, they developed all sorts of applications that emulate retro gaming machines and even bring VoIP into the picture. And it seems like we’re about to break into yet another frontier.

There’s word going around that TomTom is developing a GPS module for the Apple iPhone and this accessory will be unleashed unto the masses at MacWorld 2008 next month. The spy shot here doesn’t tell us a lot about the GPS module, but we can see that the device is quite small and fits into the docking portion of the iPhone. With the wider availability of the SDK, legitimate firms like TomTom can develop kick-ass apps, like real-time GPS navigation.

Yes, it’s still a rumor at this point, but it’s a terribly juicy one that seems to be, if you’ll pardon the pun, heading in the right direction.