While the debate continues on tech blogs and forums (making the following essentially a rumor at the moment), the consensus seems to be thus: because of a change in the parts used in all PSPs that were manufactured after October 2005, the Undiluted Platinum mod chip may not be able to work its magic on newer PSPs. If the actual hardware (board) used inside of your PSP is not labeled TA-082 you will not be affected by this news. It all comes down to this: If the new PSPs (with part labels TA-082) use 1.8V powersupply and the Actel FPGA used on undiluted Platinum supports 3.3V/2.5V only, the mod chip may not work on the newer PSPs.

All of this is premised upon the work of busy PSP enthusiasts, led by 0okm, who have searched through publicly available catalogs of part numbers and used photos of these, along with their own knowledge of the insides of a PSP, to come to the conclusion that there is a conflict between the modchip and newer versions of the PSP. Whether or not the developers of the Undiluted Platinum modchip were aware of this situation before releasing it is uncertain.

Hopefully, we will be able to chalk this up to a discrepancy with the part numbers and not a change that will affect many PSP users. However, if the suspicions of Ookm and his cohorts turn out to be a reality, it is still possible for owners of older PSPs to use Undiluted Platinum and it also might be possible for the developers of UP to make the changes necessary to compensate for any voltage irregularities that are present.

As you can see the numbers on the photographs below (left: old chip/ right: new chip) are hard to read and some have also mentioned that it would be unlikely for Sony to make such a change as this right now. Either way it was an excellent discovery and something we must all look out for when planning to purchase hardware such as a modchip.