Earlier today a new YouTube account appeared on Twitter called 'YouTube Gaming', and it had a single mysterious tweet. No announcement came with it, no explanation, no hints about what to expect. After awhile another tweet appeared, and it revealed a little more: a picture of devices running a new yet-to-be-announced product. That led into a litany of tweets revealing bits and pieces -- a screenshot here, an explanation there. There are more than 30 tweets now, and YouTube has stopped playing, formerly announcing the service. This is YouTube Gaming.