Apple announced on Friday that WWDC 2010 will kick off on June 7, running through June 11 at San Francisco’s Moscone West. A date for the keynote was not announced, though it is expected to be June 7. One new rumor suggests the fourth-generation iPhone could go on sale immediately after it is announced.

A leaked prototype of Apple’s next-generation iPhone has already revealed that the handset will likely have a forward-facing camera for video chat, and camera flash to improve picture lighting, and a camera upgrade from 3.2 megapixels to 5.0 megapixels is expected.

Apple’s next-generation iPhone has been obtained by Gizmodo, confirming the forthcoming hardware’s features, high-resolution 960×460 display, a secondary mic for noise cancellation, and a number of design changes.