If you believe the rumor mill, Apple is planning to announce ts long-rumored streaming music service as a feature alongside the iOS 7 update during WWDC next week, and now Bloomberg has more details on how it might work. According to the report, the entire thing will be free and ad-supported, Pandora-style. It's expected to include similar features for tracking user's tastes and serving up similar songs, with tight integration to iTunes so they can buy