Back Bone has announced a face plate lens adapter for the GoPro Hero 3 camera. It looks like they have both C-Mount and Nikon mount adapters. This requires some minor surgery to the camera but should be well worth the effort. Finally we can use real glass on these puppies! Back Bone has no release date or price just yet. Here is a rip from the website. A Big THANKS! to @EricDiosay for the lead.
Via Mario Pires