Yeah, I have exactly the same problem. I ordered on June 12, and my deliver dates are July 11 to July 17. But my order is STILL PROCESSING. Normally I'm quite patient about these things, but it is frustrating when I see orders placed more than a week after mine are already being delivered.
Also, I have found that Apple customer services in the U.K. are useless. I've spoken to them around three or four times since I ordered, and each time I get a completely different response. I also hear that some customers are being given SuperDrives and other accessories for their lengthy wait, but when I hinted at this the Apple rep just said, "I'm afraid there's nothing we can do."