Panasonic has debuted a hybrid smartphone-camera sporting the largest imaging sensor yet to feature on a smartphone. The Photokina trade show in Cologne saw the company lifting the curtain off Lumix DMC-CM1, whose camera has been fitted with a 1 inch 20-megapixel sensor. Probably monopolizing the attention of mobile photographers so far has been Samsung’s Galaxy K Zoom, which the Panasonic device...