I'm relatively certain they will be combined with gyroscopes for dead-reckoning [1] so that location-based services can nail you down to an exact office and floor indoors.
All this technology and I bet its primary use will be to check into conference rooms on foursquare.
All this technology and I bet its primary use will be to check into conference rooms on foursquare.
[1] http://en.wikipedia.org/wiki/Dead_reckoning