The escaped iPhone prototype is a late-stage model that very likely reflects the final design, some added insight shows today. The N90_DVT_GE4X_0493 label is now known to refer to both the codename for the next phone (N90) and that it's a Design Verification Test unit, or one made "very late" into development to prove that the finished design works. Contacts at the company have told tech writer John Gruber that few changes are made by that stage and that this would likely represent finished hardware.
