I am intending to experiment with serial on the SL5500. I read the thread on creating the serial console cable but have also seen people connecting serual devices such as GPS units straight in. I am guessing that the console cable has some kind of null modem that is not required for connecting other serial devices. I am wondering if I made up a lead with the sharp connector on one end and a male 9 pin D on the other, and wire up to match pins using the zaurus pinout PDF, whether I could plug normal serial devices such as GPS, modems, GPRS phones and other things that speak rs-232 without requiring additional circuitry. Could someone please clarify?