The studio behind Heavy Rain and the impressive Kara tech demo is committed to Sony, according to Quantic Dream head David Cage. That commitment includes being open to the possibility of being acquired by Sony, though no plans have been made.
"We are exclusive to Sony right now," Cage told IGN. "We're open to all options [such as becoming a first-party studio], but again, we're not a studio driven by money. It's an important element, of course, but it's not like 'Tell me how much money you give me and I'm going to do whatever you want.'"
He also noted that when working on Heavy Rain, they thought they had tapped the power of the PlayStation 3, but now he feels they can still squeeze more juice out of the hardware. "We had thought we had done a pretty decent job on Heavy Rain, and we just realized we didn't do anything with the hardware," he said. "We could do much more than that, and this is what we intend to do in the near future. There's still a lot to do with the PlayStation 3, I'm telling you."
Quantic Dream is a very technology-driven company, so the passion for Sony hardware makes sense, and an acquisition would be a boon to their resources. Keep in mind, though, that this doesn't mean that the companies are going steady; just that Quantic Dream is letting Sony know it wouldn't mind being asked to the prom.