Unicorn’s site will be an ad-supported entertainment site offering “free, unlimited access” to audio and video content, but there’s more to it: Rather than focusing on sheer volume of music, as MySpace seems to intend, it looks like Unicorn will raise the bar by focusing on two primary goals: (1) Offering consistent, high-definition content to customers, and (2) allowing emerging artists to showcase their work in a more attractive, efficient and profitable way....