We know there is a great number of people trying to find GPS solutions for there Axim. We now have both Dell Axim serial cables and serial GPS receivers.
The Cables can be used with other GPS receivers but some modifications maybe needed depending on the receiver.
The main difference of our serial cable is the +5v is on pin 9 of the DB9 connector, since most null modem adapters have no connection through on pin 9 you may have to make your own cable or at least rewire the GPS end of the cable.
We have been successful in using these cables on a Leadtek GPS and a holux GM-210
If you need wiring information or details we will be happy to provide them to you.
We hope this may help some of the great people here in this forum.