Trust the Japanese to invent something like this. It’s been a long time coming, ever since the world was introduced to the idea of synthetic smells with the brief,but interesting spell of ‘scratch-n-sniff’stickers. Now,instead of making smells come out of stickers, they’re making smells come out of your phone. That’s right, they’ve made a smartphone accessory that can make your room smell like coffee. Or Bacon. Or Curry. Whatever revs your motor.