Finding Your Place with Core Location – demoed the first iPhone virtual reality app using a prototype iPhone 3GS with built-in magnetometer.
Apple 2009 · WWDC Index, Session 119
Sensing Device Motion
Apple 2010 · WWDC Index, Session 423
Finding Your Place with Core Location – demoed the first iPhone virtual reality app using a prototype iPhone 3GS with built-in magnetometer.
Apple 2009 · WWDC Index, Session 119
Sensing Device Motion
Apple 2010 · WWDC Index, Session 423