In the past, BioWare has been heralded for creating games with epic stories that were comparable to what you'd read in a fantasy novel, except the protagonist was your character and the narrative was derived from your decisions. But much of that narrative, depending on how you played, would be very similar to your friend's play through of the same game, albeit with subtle differences.
Dragon Age: Origins, however, looks to change that mold. At GamesCom 2009, the BioWare team pulled out all the stops and sat journalists down for what they described as "storytelling 2.0." They showed the gathered press two different versions of the same event, each of which had huge repercussions on that person's gameplay. Ten Ton Hammer was there, recording every detail.