This is my Alphasmart 3000
See it's just a keyboard that is great for typing anything. I'm currently using it as my keyboard. You just plug it into your ibook and it'll emulate as your keyboard. After hearing what happened to Zach's Powerbook (12 ounces of coffee into the keyboard.) I'm a little paranoid about putting William (my ibook's name) near even the chance of spillage.
Even though the Alphasmart runs on batteries, it'll last for months or years (according to Hana:)