I could be wrong, but I think there is almost an over/under with PSP's wherein the fact is people probably either stayed at 2.0 and lower or went 2.01 and higher. As a result it would make sense to help out the larger majority first, making an exploit for the 2.01 only helps the small percentage of people who are @ 2.01, but if you were to exploit 2.5 or even 2.6 than you would also be helping everyone with a lower firmware inclusinve.

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