The "AP" stage is the last one before retail release; final hardware, almost final software. Interestingly, the site has been told that the device contains a SIM card slot.
BGR hypothesizes that:
● The iPhone 3,2 could be the mythical CDMA + GSM/HSPA device that would support Verizon, AT&T, and the other current worldwide iPhone 4 carriers frequencies.
● The iPhone 3,2 could be a CDMA-capable iPhone that houses a SIM card for global roaming capabilities
● The iPhone model 3,2 would simply be a slightly different design that doesnt suffer from the same antenna attenuation as the current model
The source also revealed that the iPhone 5 is in the Engineering Verification Test. The "EVT" stage is before the "DVT" phase.