I love watching pre-IGF deadline trailers - these clips usually showcase games that are already in an advanced stage of development (fully working, usually playable) and are ready to be shown to the public.

The Swapper was famously previewed by Brian Crecente as his favorite IGF entry in 2009, and I'm certain that he'd be stoked to see how much an extra development period of twelve months has made this new build so different from the previous IGF-submitted version.

You can find trailers for two more IGF-submitted games in the extended (Alientrap Software's upcoming action platformer Capsized and a great-looking rhythm game called Shield the Beat).