PS3fanboy.com writes, David Cage likes to talk a lot -- especially when 'Uncanny Valleys' are involved. So, it shouldn't come as surprise to see a seven page discussion with the Heavy Rain developer over at Gamasutra. Cutting down to the most relevant bits, Cage solidified Quantic Dream's decision to develop solely for PS3: "Honestly, working on one platform is the best thing we could dream of, and it's a choice."
This little bit of news is a nice reassurance that Heavy Rain will remain a PS3 exclusive, as recent mentions of other 3rd party exclusives have been found to have their exclusivity in question, or outright gone. Further backing up his adherence to PS3, Cage had this to say: "You say it's a limited audience -- yeah, it's true at the moment, but by the end of the PlayStation 2, I think there are 120 million units in the world, so I don't call that a limited market. There's no reason why the PlayStation 3 can't reach these numbers."
Note: Clicking on SOURCE in the PS3fanboy.com article will take you to the full seven page interview with interesting details about the PS3 exclusive Heavy Rain.