title: Calculating location using gyroscope & accelerometer
body: <p>I wanted to open this up to other to see if anyone has any ideas about this?
  We are creating an app that is using corelocation &amp; a bit of physics.. however we are not getting this accuracy... <a href="http://www.youtube.com/watch?v=HTZFRDBdQck&amp;feature=related" rel="nofollow">http://www.youtube.com/watch?v=HTZFRDBdQck&amp;feature=related</a></p>
  
  <p>Any thoughts on what they have done to make this so accurate?</p>