The increased file size is designed to offer developers greater scope when producing games for the downloadable title platform. (mcvuk.com)
It's not like the handheld isn't capable of producing games like that. (blog.us.playstation.com)
I'm glad to see that the developers are still producing games on the 360 and it looks like a lot of really cool games will be coming out on it still! (majornelson.com)