If you're the sort that needs peace and quiet to get anything done, escaping the noise pollution of every day life -- regardless of where you're located -- is no easy task. A white noise machine can help, but in the end it's still electronic noise, and unless you can afford a fancy sound system, the noise often sounds unnatural. A new device that sticks onto your window, Sono, will not only cancel real-world noise, but isolate the noises you'd prefer to hear, if any.