Manuel Perez Prada designed a unique concept for a camera that could be used in one hand, which he claims is a new archetype for a camera. The design seems to be inspired by ancient telescopes.
While they love the concept, Yanko Design dissects the mechanism and thinks its pre-mature, given the current technology. They argue that, "The best optical quality comes from the least amount of moving parts and this one looks like it has a boatload with all those rings. Part of being an SLR is being able to adapt or create your environment by the use of interchangeable lenses - characteristics this design seems to forgo. Lastly the flash ring around the lens barrel may in theory create even lighting but having a flash that close to the iris only serves to distort the image."
While I agree with them that this might not be the best design for an SLR, it could be great for a convenient less professional camera.