Around 1:30pm I recieve my iPhone 4. Apple's box holding the iPhone is very small...and quite heavy. As soon as I turned on the phone, I was amazed at how sharp and clear the display is. It is also brighter than the 3G. Switching from app to app is a snap, no slow down whatsoever. Accessing the camera is quick. Photos do well in low light. Recording HD videos look very good. There is one dissapointment, it's the signal bars, it fluctuate from 0 bars to 5 bars, seems to be that the external antennas aren't doing what it's suppose to, improve signal.

UPDATE: Somebody tells me that Apple knows about the low signal issue and will soon fix it through an update.