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Its for power hungry bad boys to make your own super computer in simple terms then develop on/with. but you will need a min of 2 ps3's i believe linked to gather for a basic setup, and they all need to be on 3.15fw to take full advantage of the system hardware be for the otheros removal.
There are easier ways with some of the Linux distros to create a super computer on the ps3 tho. I have 7 ps3's and need one more to complete my project. Then the fun begins.