True, Sony are likely to implement a distribution-prevention system, but a MAC address is not likely to be used. Namely because a MAC address is typicly only used for identification over wireless networks, so the address is probably stored somewhere like the Wi-Fi hardware, and definately not in the firmware. We can change the MAC address of a USB Wi-Fi peripheral on a PC because windows needs access to it, and we can use that as our way in. We probably can't change the PSP's because there is no current way to access the Wi-Fi hardware, apart from the MAC address display in the system settings.

A more likely system is serial numbers or hardware IDs, and we DEFINATELY can't change them.

All this said, Sony's approach may be completely different, if they even try at all.

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