From an article on CNET about Apple choosing to use Intel processors for their next generation of Macs. Check this out...
"Kutaragi tried to interest Jobs in adopting the Cell chip, which is being developed by IBM for use in the coming PlayStation 3, in exchange for access to certain Sony technologies. Jobs rejected the idea, telling Kutaragi that he was disappointed with the Cell design, which he believes will be even less effective than the PowerPC."
Full article here.