What processor drives the new iPhone?

What processor drives the new 
iPhone?
After shocking the world with pictures and details about the upcoming iPhone 4, Jason Chen at Gizmodo takes the thing apart. What did he find out? Lots of humdrum stuff like how many screws it has, but the main revelation is a battery that's still not user-replaceable but is 19% larger than its predecessor.
One aspect of the new phone that's still unknown is the nature of its processor. Would Apple use the same A4 processor that wowed us inside the iPad? This phone's unmarked processor was so tightly wrapped in metal, it was impossible to unravel without destroying it. But think about it: if Apple has a faster processor that it makes in-house, why wouldn't it use that with its latest hardware?
Jason figures that before the phone is shipped, Apple could still remove components from within its tightly packed interior because of contractual obligations or cost issues. But one thing is almost certain: Nothing else could be added. As he put it after he had removed the 40-50 screws inside the iPhone, "This thing is packed together like a jigsaw puzzle."