From the linked article: "Yes, that's in-engine (in-engine means it's done with game assets in our rendering engine, but isn't done real-time". So, yes it is pre-rendered, but not by external software and hardware. For all I know, today's mainstream video cards may not be able to render this video in real time at acceptable frame rates (seems likely, considering the fall '08 release date). In other words, it isn't game play footage, so I don't care about it as much.
