The complete and extended version of my GamesBeat 09 talk

This is the first time I tried to add my narration to my slides. There were so many technical issues happened during the making of this video. So if you hear sound glitches (some are pretty long), please bear with me. In addition, this was suppose to be a 8 minutes talk. However, I spent 20 minutes trying to elaborate each slides to more details which made the talk too long to watch : {