Apple is expected to finally unveil its cloud-based music service next month at its annual Worldwide Developer Conference in San Francisco. Unlike similar products recently introduced by Google and Amazon that feature limited utility, Apple is thought to have deals in place with major record labels that will allow it to offer a paid service and a simplified library building process. The service has been rumored to be in development for years, and now Bloomberg Businessweek has supposedly spilled the beans, detailing exactly how the offering will work. Citing anonymous sources who were briefed on Apple’s talks with record labels, Apple’s cloud music service will constantly scan a user’s iTunes library and mirror the songs on Apple servers. The user will then be able to stream the music to any PC, iPhone, iPad or iPod touch, and some day, even to a car. While the appeal of such a service might be questionable due to the ever-increasing storage capacity of Apple’s portable iOS devices, it is believed that Apple plans to charge a monthly fee for the service.