Image courtesy of Gizmodo.com
Gizmodo has posted photos of iPhone 3G store displays, the units are very similar to last year with the giant oversized model iPhone showing a video of the devices functions.

Mac Rumors reports that AT&T stores are due to get the displays tomorrow:

Beginning July 8th you will receive the new iPhone 3G demo devices at your store to enhance your sales process. These devices will be used the same as your 2G demo devices in your sales process but now you can demonstrate the additional capabilities of the iPhone 3G including the App Store

Apple Stores in the US are rumoured to be opening at 8am to mirror AT&T stores, iPhones will be activated within Apple stores and cannot be paid for with cash.

It should also be noted that iTunes 7.7 which is required for iPhone activation should be released sometime Tuesday, just in time for the New Zealand iPhone launch.