Sorry, this is nothing new at all. Here is a list of smartphones which have a build-in barometer sensor to measure atmospheric pressure to improve the location services: Google Nexus 4, Samsung Ativ S i8750, Samsung Galaxy Nexus i9250, Samsung Galaxy S3 i9300, Samsung Galaxy S3 LTE i9305, Samsung Galaxy Note (N7000), Samsung Galaxy Note 2 (N7100), Simvalley Mobile XT-710 Apogee, Takwak tw700.