Nice posts Terarrim, most of the people here love to talk out of their a$$es and don't know much.  With real life proof like the number crunching power of the Cell in folding@home, MIT dedicating a new class to the Cell architecture, and the demos of SOny's 1st party games that are exclusive to the PS3 no more proof is needed.  3rd party games that are ported from the 360 to the PS3 will not look as good on the PS3 unless the developer takes its time to rebuild the assets that work differently on the PS3.  Beth SOft probably reused graphics, music, text, etc in Oblivion but probably rewrote the code that controls the game, that's why it took so long and why it's the only good port.  Multi-platform games are developed for the least common denominator, and that's the 360 core.  PS3 users suffer, that's why PS3 users should support companies that take the time to do a good port like Bethesda.

And yes, based on the diagrams it definitely looks like one the PPE "launches" a program to the SPE, the SPE doesn't have to go back to the PPE.