Digital cameras take great pictures, but they lack your smartphone’s ability to evolve – you can’t add an Instagram app to your Digital SLR, for example. Except wait, now you can now. Polaroid’s iM1836 is a compact digital camera with interchangeable lenses. And it runs the Android 4.1 operating system, so you can add apps and use it like a cameraphone. The cost: $349. Plus, the sensor is not in the camera body. It’s in the lens. That is, I believe, a first in the history of digital cameras, and makes each lens a nearly complete imaging system which could actually offer different sensor sizes and resolutions.