iphonehacks is running an article where it pointed out that the famous developer Erica Sadun has discovered that the recently released iphone firmware2.2 SDK offers an option to export video-out live to a connected TV screen. This is an undocumented feature in the SDK.
There is already a working prototype to prove that this thing works in real. See this video where the live camera is projected on a TV screen.
It does not stop here. Greg Hartstein developed an impressive prototype with on-screen controls where he can extend the iphone desktop to the tv screen. i.e you can use the tv-screen as additional space of your iphone. This is like extending the display of computer output to more than one monitors. Laptop users with windows operating system might be familiar how to extend their laptop screen to a standalone monitor. See this video which demonstrates the feature that I am talking about. Please be patient, it comes towards the end after showing some other interesting possibilites.
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