tech support

Does anybody happen to know how I might go about backing up my cell phone contact list onto my Powerbook? I just have that itchy feeling I get when my belongings are about to be lost or stolen, and I don't think that in the age of Bluetooth and what-have-you that I should take to pen and paper like a sucker. And yet, I can't figure it out. Thoughts, suggestions welcome.

(Tried this, but they didn't seem to support my phone.)