Taking place this week is Tokyo Game Show, one of the largest video game conventions in the world. Sony president, Hirai Kazuo, announced on Thursday that they will be delaying the launch of 'Home,' the Playstation 3 virtual world service. While the service was originally intended to be released this year, it is now pushed pack to spring 2008. "Home" is an interactive world where players create an avatar in order to do a variety of things, such as setting up their own rooms, playing games with other users and watching movie trailers. Sony hopes that the service will bring about new forms of advertising as well as electronic shopping.