I have a less sophisticated cousin, the Handspring Visor. I keep track of my appointments and contacts. I have gotten a keyboard and can make fairly complex documents which I can load onto my iBook and then print. I use it for notes at meetings with the screen keyboard. I am getting better at taking notes and have avoided the clutter of bits of paper and the tendency to lose them. It is easier to get up and going than my iBook or pc and I am developing the habit of noting concepts and ideas for projects for which if I had to boot up my lap top or pc I probably would not bother.
I love my Palm Pilot. I like the fact that if I am out somewhere and I need to make an appt. or I enter data into it, when I get back to the office I just sync it to my computer and I don't have to do anything twice. It's like having a daytimer with you at all times cause it fits in your purse.
Also if someone else has one they can just point there Palm and yours and with the hit of a button, you instantly receive their cyber business card into your contact list. Voila!