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An iPhone developer was able to find hidden code in the SDK that allows iPhone games to be played on a wide screen TV. ArsTechnica's Erica Sadun collaborated with Freeverse, makers of Moto Chaser, and experimented with the APIs. Just a few hours later, the TV version of the iPhone game was made.
They used the iPhone's accelerometer for input and steering and routed the game's video through a video-out cable to the TV. Freeverse says that the game ran best on the second-generation iPod touch, because of its 532MHz processor.
Freeverse says that Moto Chaser is “nearly playable” because it maxed out at around 20 frames per second. Bruce Morrison, of Freeverse , says the "norm for commercial games is 30fps, a point at which motion becomes as smooth and watchable as normal TV video." The game’s sound quality was initially lacking, but it greatly improved when pumped through some decent speakers.
All in all the dev effort took under 3 hours!...iPhone/TV gaming on its way!
Source: AppleInsider | Hidden feature turns iPhone into TV gaming device