XBox 360: Project Natal Official Trailer [HD]

Project Natal(pronounced [naˈtal], nah-tahl) is the code name for a "controller-free gaming and entertainment experience" by Microsoft for the Xbox 360 video game platform. Based on an add-on peripheral for the Xbox 360 console, Project Natal enables users to control and interact with the Xbox 360 without the need to touch a game controller through a natural user interface using gestures, spoken commands, or presented objects and images. The project is aimed at broadening the Xbox 360's audience beyond its typically hardcore base.
Project Natal was first announced on June 1, 2009 at E3 2009. Microsoft said that over a thousand software development kits began shipping to game developers that same day.[2] It is scheduled to be released during the fourth quarter of 2010.
Pricing for Project Natal has not been announced. Project Natal will reportedly also serve as the basis for a "new" Xbox 360. Though it is rumored that the launch of Project Natal will be accompanied with the release of a new Xbox 360 console (as either a new retail configuration, a significant design revision, and/or a modest hardware upgrade), Microsoft has dismissed the reports in public, and has repeatedly emphasized that Project Natal will be fully compatible with all Xbox 360 consoles. Microsoft indicates that it considers Project Natal to be a significant initiative, as fundamental to the Xbox brand as Xbox Live, and with a launch akin to that of a new Xbox console platform. Project Natal was even mistakenly referred to as a "new Xbox" by Microsoft chief executive officer Steve Ballmer at speech for the Executives' Club of Chicago. When asked if the introduction of Project Natal will extend the time before the next-generation console platform is launched (historically about 5 years between platforms), Microsoft corporate vice president Shane Kim reaffirmed that the company believes that the life cycle of the Xbox 360 will last through 2015 (10 years).