Heavy Rain Is Currently At Alpha Build.

Alas, it's been pushed back until 2010 and Quantic Dream's David Cage reckons there is much work to be done:
[quote]
“We’re still at the alpha stage and there’s a whole lot of work to be done,” Cage told NowGamer. “There’s so much fine-tuning in the game left to do. Everything has to be perfect. If there’s one thing wrong in a scene, it’s the only thing you’ll see. There are many things that don’t work right now.”

“We need to have everything in place, from facial animations, to score to work out the final result,” he added.</blockquote>

Take as long as you need David. Heavy Rain is going to absolutely rock. We can feel it.