Remember the past, when Apple launched the Apple A5X to great fanfare? When the A5X launched, Apple also snuck in a change to the process generation in their A5 chip by putting a new 32 nm version inside the iPad2 and Apple TV3. Apple (likely) plays it this way because they don’t want people evaluating their products based on “commodity” technical specifications, but based on the overall experience with the device.
Because of this past behavior, there has been some speculation on the web as to whether they would do the same thing with the latest generation of Apple A5 processor. A new process for a new product. Maybe even a new foundry partner?