BEATS MUSIC, the much talked about Apple music streaming service, is expected to be officially announced at the tech firm's World Wide Developers Conference in San Francisco on June 8th. 

Expectations that the conference would also serve as the launch date for what many consider to be Apple's category killer — in a market currently dominated by Spotify and Pandora — look increasingly dim, however. Various reports suggest the necessary licensing agreements with record labels and music publishers are taking longer to sign-off on than had been expected. 

MacWorld updates what is known about Beats Music and iTunes Radio, and offers some insider speculations about what might be coming from the Silicon Valley gadget maker.