John Gruber, is also predicting faster processor, more battery life, better camera and digital compass for the iPhone 3. While nothing new is noted on the iPhone, he adds another voice to the changes we've been hearing for awhile now. He also agrees that a major feature of the next touch devices from Apple will be the cameras.
Based on our information, we believe the next iPhone chip will be the S5PC100.(Google it).
He also thinks that 13-inch aluminum Macbooks will all now be called MacBook Pros (not Airs of course) and we'll see minor updates to the MacBook Pro line at WWDC.