inputs.text: easy use apps understand nmea sentences programmer - bought product could play no real need wanted coordinate readings accelerometer gps data fun turned perfect gadget easy get work apple os x device works serial port dev folder read information easily outputs nmea sentances easy parse not thrilled accuracy inexpensive easy use also small easy stick dashboard tape even came wall charger 12v automotive charger used charge devices charge via usb connection battery lasts long time not need thehem often device charges via usb port not read nmea sentences via usb port