Sometimes in this job you find yourself laughing with glee at the ingenuity of new technology. Somebody takes an existing concept and marries it to the cutting edge to create a gadget that surprises and delights. Nikon has pulled it off with the S1000pj camera. Those little letters at the end of its name don’t stand for pyjamas (well, that was my first guess) but, wait for it, projector. Yes,...