> Sony has managed to keep information on how to directly access video, > audio and other hardware away from third party developers.
Yes, that's the second (but weaker) part of Sony's security measure. Even if you succeeded in circumventing or hacking the hypervisor to run your OS in "GameOS" mode and thus were able to access the PS3's bare metal you'd still need documentation to program it. Btw, there had been a semi-successful approach in the past to access the GPU directly from within Linux running in "OtherOS" mode:
