When I wanted to develop a program for the Jornada, that uses COM1, I ran into
a problem using the RS-232 port for my program and the USB for ActiveSync.

It appears HP do not have a cradle that allows both RS-232 and USB at the same time.

So, I modified the USB cradle and turned it into a dual purpose
RS-232 and USB cradle. I call it "The Developer Cradle" may be
I should call it "The Developer Cradle HP forgot !"

Full details at

http://hans-w.com/jornada.htm

I am not selling anything this information is free, use it at your own risk.

Best Regards
Hans Wedemeyer
http://hans-w.com