For anyone who had a hard time finding an external keyboard for Jornada 720, I am leaving this message as a reference point to tell you there is a keyboard called IBIZ keysync that supports Jornada 720. It has DB9 serial port connection. I was able to find the keyboard on eBay for around 30USD.
Saidp, thanks for reporting. I've checked the HCL and we already have that in there with compatibility with the 720. Don't forget to go and report compatibility and rate it ^_^ https://www.hpcfactor.com/hcl/
