Apple has two new iPhone SKUs that have appeared in their internal inventory. The model appearing is the N90A which is a changed iPhone 4. This new iPhone could be the 8 GB iPhone 4 which has been rumored to be released as a low cost iPhone. The two different SKUs most likely mean that the two devices would be available in black and white.
Maybe we have all been mislead and the October 4th announcement is nothing more than an iPhone 4S with no iPhone 5.
Apple releasing an 8 GB iPhone could open the device to a lot more consumers. We are only a week away from knowing for sure.