Unfortunately the evidence is weak (a stock analyst's guess), but the potential is obvious, and has been debated at length here.
It would certainly be good for Apple to get the Cell in its computers, but that will only happen after Sony and Apple strike a deal. Sony has a sizable wintel computer division, so I don't know how they would work together, seeing as Steve has no intention to license the Mac OS. Antother option I see would be to expand iTunes onto Sony hardware, but again Sony has it's own service there.