You can swap the lens out of your DSLR and you think that's impressive. Well, Ricoh says, "big whoop," because they're new camera uses interchangeable "blocks," which contain the lens as well as the processing chip and the sensor. The camera itself, which is set up like a classic range finder, has a built-in flash and an LCD screen. Everything else is handled by the blocks, the first of which will include a standard 12-megapixel 50mm fixed lens and a 10-megapixel 24-72mm zoom lens. The body is $549 and the blocks range from $440 to $830. It's a steep initial investment, but if the system is successful, could make your camera futureproof.