I'd love to buy a brand new Palm Pilot. IMHO, the merger of a cell phone with the PDA gives you one box that doesn't do as good a job at being either one. I still use a flip-phone, and I have had to buy a I-pod to use (or maybe I should say "be abused by") as a PDA (after having gone through a couple of "used" Palm Pilots).
Just make sure that the "new" one is software compatible with the old. (Now, where did I put those W98 backups that I made that have the backups from my Pilot?)
One improvement I'd like to see would be to go to a "real" USB interface without having to have that custom cable.