Apple (NASDAQ:AAPL) will start its annual Worldwide Developers Conference on Monday, June 10. Although there are some details that are up in the air, Apple has already confirmed it will unveil the latest version of its iOS mobile operating system--in addition, CEO Tim Cook recently confirmed Apple's Senior Vice President of Industrial Design Jony Ive is spearheading an overhaul of the iOS user interface, which sources say will abandon the mismatched, texture-heavy design of previous iterations in favor of a more unified UI that is "black, white and flat all over." There are also very strong indications that Apple will announce "iRadio," its entrant into the growing streaming radio market occupied by rivals like Pandora, Spotify and Google Play Music All Access. And if past WWDC events are any indication, Apple will have some surprises up its sleeve as well. FierceMobileContent will cover WWDC 2013 in-depth: Click here next week for breaking news and insight.