It's five days of developer love in sunny San Francisco, and this year it starts on June 6th. As ever, Moscone West will be hosting Apple's Worldwide Developers Conference, and this year we'll be seeing "the future of iOS and Mac OS" along with "more than 100 technical sessions presented by Apple engineers." Last time Steve Jobs unveiled the iPhone 4 to a very willing world at large. Could its successor make an appearance this year? We'll be there live to tell you if and when it happens.