Sony Questions Motivation Behind Microsoft's Interest in Folding@Home

The Folding@home project is, thus far, going extremely well, putting quite a feather in the PS3's cap. Microsoft has expressed an interest in somehow contributing to the cause, though the processing power of the 360 is a bit wimpy for the project's needs. In an interview with GamePro, Sony's Jack Tretton said he was thrilled to have other companies contribute to Folding@home, as long as they're doing it for the right reasons:

But let's face it, if your motivation is for PR, to me, that's a little shallow. We go out of our way, correctly so, to make sure that we don't try to sell PS3s on Folding@Home. We try to look at it for just what it is, which is great community service for a great cause, and I think to look at it as a marketing platform is something that a company certainly wouldn't want to do. I'm certainly not insinuating that's
Microsoft's motivation, but I'm not even sure how relevant it is to what were doing.

He went on to say that he'd be "very disappointed" if Microsoft was just looking to "suck off some of the goodwill that we're doing." This begs the question: is he justified in being peeved, or given Folding@home's noble disease-fighting goal, should he just suck it up and say "the more the merrier," no matter what their motivation?

Exclusive: Jack Tretton talks rumble, Metal Gear, and Microsoft on Folding@home [GamePro]