Tool for managing i-Blue 747 and compatible GPS data loggers

 MTKBabel is a command line program to operate the i-Blue 747 GPS data logger.
 It should work also with other GPS devices based on the MediaTek MTK chipset.
 For instance the Holux M-241 GPS data logger, the Holux M-1200E, as well as
 the 747 A+ GPS Trip Recorder, are also known to work.
 .
 The main features are:
  - Command line interface
  - Save data log in GPX and raw binary format
  - If required retrieve all the data, also the old one being overlapped
  - Change logging criteria: time, distance, speed
  - Change log format
  - START/STOP logging
  - Set OVERLAP or STOP method on memory full
  - Erase the internal memory