I got a Handspring Visor Neo pda for Christmas.
It's about the size of a calculator, have no idea how much memory it has, but it was 200 bux. I love it. Stores phone #'s etc, has a to do list, calendar, daily journal, calculator plus much more
There are many sites on the web that you can download programs. One site is called ePocrates.com that you can download drug info & store it in your handheld. You can also use the cradle that comes with it, plug into your computer, & type your calendar info & transfer it to the handheld. It saves some time doing it that way.
The company has a website www.handspring.com.
It was started by a group of the original PALM PILOT designers & all of handspring products are compatible with PALM software.
Hope this helps you a bit