Kev Harris reviews the iON Adventure camera which has a GPS sensor.
Not only does the iON Adventure shoot 1080p footage but it also has a built in GPS receiver, which allows users to add location, speed and altitude data to their videos.
This brings video footage to life as it enables your friends to really appreciate how fast you were travelling when you hit that tree or fell off your motorbike. Furthermore, if you were to be in an accident, your exact location and speed would sit alongside the video evidence. This could then be taken to the police to prove your innocence. Not only would you be able to see who was involved in the accident you would be able to prove that you were driving / riding in a sensible manner.
See more info here: http://bit.ly/1iayh83