Unveiled back in March, Apple Arcade represents Cupertino's entrance into the emerging subscription-based gaming market. Today Apple spilled the last few details we were all waiting on. Namely the service launch date - September 19, as well as the subscription model. The latter will be "all you can eat" for $4.99 a month. You get a month for free so you can trial the service. Better still, one subscription covers your entire Apple family (up to six members). That should really stir things up thanks to features like seamless transition from iPhone to iPad, Mac and Apple TV as...