Now that the Xbox One is not taking up a full gamut of controversial stances, gamers are free to express interest in the system again. If you're curious about Project Spark, which was revealed during E3, then you might want to hop over to the beta registration page.
Project Spark is a game-creation program/initiative that will let anyone create their own games. It utilizes touch (SmartGlass) or motion (Kinect) controls and runs on Xbox One as well as Windows 8. Major Nelson announced that beta registration is now open now, although not everyone who registers will get in immediately.
It seems that Windows 8 may be the preferred way to use this though as creating a world via Kinect would probably become very tiring after a while. There's currently no release date for Project Spark but at least players will be able to mess around with it beforehand.