System.Object
   ESRI.ArcGIS.Mobile.Gps.GpsConstructionTool
      ESRI.ArcGIS.Mobile.Gps.GpsAveragingTool
      ESRI.ArcGIS.Mobile.Gps.GpsStreamingTool
   ESRI.ArcGIS.Mobile.Gps.GpsQualityFilter
   ESRI.ArcGIS.Mobile.Gps.GpsStreamingSettings
   ESRI.ArcGIS.Mobile.Gps.Satellite
   System.EventArgs
      ESRI.ArcGIS.Mobile.Gps.GpsErrorEventArgs
      ESRI.ArcGIS.Mobile.Gps.NmeaSentenceEventArgs
   System.MarshalByRefObject
      System.ComponentModel.Component
         ESRI.ArcGIS.Mobile.Gps.GpsConnection
            ESRI.ArcGIS.Mobile.Gps.NmeaGpsConnection
               ESRI.ArcGIS.Mobile.Gps.FileGpsConnection
               ESRI.ArcGIS.Mobile.Gps.SerialPortGpsConnection
         ESRI.ArcGIS.Mobile.Gps.GpsDisplay

Reference

ESRI.ArcGIS.Mobile Assembly