The implementation looks pretty creepy, but the idea here is cool. Pentax is showing off their X-Change concept point and shoot at PhotoKina this year and what they’ve come up with is a small, portable camera with replaceable lenses. The camera has no CCD. Instead, the CCD is built into the lens and is activated when you attach it to the body. This allows for varying focal lengths and, one would assume, resolution.
What happening here is they’ve created a carrying case for mini-cameras. Clearly we’d have a bit of trouble aiming a tube of optics at our picture, so the body acts as a base for the lenses. Not quite ready for prime time, but interesting nonetheless.