It's about time. As displayed last year, iPhone Displays and Demo Units will be put in tomorrow. You can see the iPhone 3G one in the picture above provided by GIZMODO.I have always loved that Apple/AT&T has done this so that there will be a 'big screen' displaying, basically, a screen guided our. It's cool how they have kind of an "iPhone (3G) Only Section" so that it is easy to find.
Employees are being told to buy Apps from the AppStore on July 10th, so we will probably not be able to 'play with the iPhone 3G's' until the launch day.