iPhone 3GS Compass Unlocks a World of Possibilities for Apps

latimesblogs.latimes.com — Thanks to one little feature addition to the iPhone 3GS -- the compass -- app developers can now create all kinds of augmented reality apps. Using the camera, compass, GPS and Web connectivity, we can get first-person shooter-like HUD overlays. Jul 13, 2009 View in Crawl 4