In 2007 Apple surprised by including an accelerometer very well implemented to interact with games and applications, leaving the round play without a doubt.
In 2009 they decided to implement a digital compass that would allow us to use augmented reality applications on the iPhone 3GS, a novelty not as revolutionary as that of 2007 but without a doubt interesting and fun.
Today June 7, 2010, Apple has once again implemented a novelty in this area. It is a three-axis gyroscope that will allow us to play new games like we have never done on an iPhone ... although obviously we can only do it on the iPhone 4. Good and interesting news.
Photos | Engadget
gyroscope…. Isn't that a very accurate accelerometer?
«The gyroscope or gyroscope is a mechanical device essentially formed by a body with rotational symmetry that rotates around its axis of symmetry. When the gyroscope is subjected to a moment of force that tends to change the orientation of the axis of rotation, its behavior is apparently paradoxical since the axis of rotation, instead of changing direction as a non-rotating body would, changes orientation. in a direction perpendicular to the "intuitive" direction. "
Steve Jobs demonstrated a game in which he used the Gyroscope, it was a 3D figure that rotated if SteveJobs rotated, it was very interesting .. They should do a post defining the gyroscope and what it will do on the iphone4