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+Magxfer uploads detail and base maps to Magellan's mapping GPS receivers
+under POSIX operating systems like UnixWare, OpenServer, Linux, FreeBSD,
+Solaris, and OpenBSD.  It is most useful on the 330 and SportTrak;
+Meridians can just read the maps from the SD cards.
+
+It does **not** create or edit those maps; for that you must still use
+Mapsend.  But once you've used Mapsend to create the maps, you may keep
+a collection of *.img files on your UNIX system and use this utility to 
+shoot them into your receiver.
+
+Usage is simple:
+
+       magxfer [-p portname] [-b bitrate] -f filetosend.img
+
+       portname specifies the serial port to use.  The default 
+               is "/dev/ttyS0" which is the first serial port on a 
+               Linux PC.
+
+       bitrate specifies the speed to send the upload command.  The
+               default is 4800.   After connection is made, the actual
+               transfer happens at 115200 bps, regardless of this option.
+
+       filetosend.img is the image file you wish to upload to the unit.
+               
+