The purpose for me to buy a simple handheld is to do daily planning, take short notes for news words/phrases, shopping list, etc. I want to be able to write on it anywhere anytime. I noticed Sony Clie because it has a small keyboard. Can I write and save notes on Palm Z22 without being connected to a computer? If yes, do I use Graffiti method? I am new to handheld. Please help. I appreciate your advice.