He picked up a 64GB white iPhone 4S.
Faster, less signal loss, better speaker phone abilities, gentler vibration for notifications, and a better camera:
If the iPhone 4 camera was good enough that you could leave your point and shoot at home. Then the iPhone 4S camera is good enough that you should leave your point and shoot at home.
For the record, I won’t be upgrading my iPhone 4 to a 4S. I’d love to be able to for the camera upgrade alone, but it’s just not worth it considering how much I’d have to pay since I’m not eligible for a hardware upgrade with Telus.