CrunchGear has a spread on what appears to be the new 3G iPhone. Matt Hickey wrote in CrunchGear:
It's thinner than the current model, for sure, with a more MacBook Air-like bezeling. It's got stereo speakers on the back and what appears to be the same screen as the current generation. But the real news here isn't the Exchange support, but the front facing camera for iChat AV.
Stay tuned for CNET News.com's Tom Krazit's live coverage from Apple's Worldwide Developer Conference and CEO Steve Jobs' unveiling of the iPhone that will be coveted by every current iPhone user.