updated 10:45 pm EST, Wed November 26, 2008
TV-out API in iPhone SDK
Apple has reportedly included an API in the iPhone 2.2 SDK that allows video output for connection with TVs, according to Ars Technica. The function, "MPTVOutWindow" can be used divert the video feed to other devices instead of the phone screen. Although the iPhone is already capable of playing iTunes content through a TV, the undocumented API could extend the functionality into the hands of developers. Application possibilities include games or presentation utilities, such as slide-shows.
Although MPTVOutWindow is allegedly undocumented, it has been included in the public APIs that do not carry the restrictions of Apple's private framework. Developers are already actively working on interactive video-out projects, but it may take a while any public releases.