good. My organization requires an accuracy below the meter, I think doing an integration ArcGIS Mobile SDK and GPS Pathfinder ® Field The Toolkit can get a RINEX file which can be processed on a computer desktop by adjusting the coordinate.
This way I think it would be used Arc controls for the GPS but the objects themselves Trimble RINEX capturing and making a traditional processing of GPS accuracy. Later you can build an application that integrates data from gdb with the coordinates of the fixed point