As a multitude of sites have pointed out, Gizmoto has gotten their mitts on an alleged prototype of the iPhone 4G. I have no great opinion of its quality, since I won't be able to buy it until I can afford to pay cash for one and hook it up to my T-Mobile to Go account.
However, John Gruber at Daring Fireball has gotten super-secret pictures of Steve Job's office today, after hearing about the release:
(Thanks to skarpi at http://www.flickr.com/photos/skarpi/4527797541/ for making the picture available on the Internet. I didn't copy the picture, only made a link back to it.)