I bought one on the cheap from Amazong. It does the job but it was more of a chore to pick it up and hold everytime I wanted to touch the screen. I used it as a gimmick for a bout 2-3 weeks for fun drawing or scribbling but now it's colllecting dust on my desk.
This is exactly what I use it for--Along with the Noteshelf app (Penultimate is also good).
I think it depends on what works best for you. I see many coworkers in meetings with laptops pecking out notes, but it distracts me too much. I used to fill notebooks and now I just fill pages in Noteshelf...then I have them all at hand when I need them.
never owned an iPad before but i hate fingerprints on touch screen devices. so I'm sure I will buy one to try it out.. only thing I can imagine bothering me is typing with it, But then again, I have fat fingers that love to press the wrong buttons... but at least there is more than one of them.
I originally didn't intend to use a stylus with my iPad but when I ordered a case today, it came with a free stylus so I am going to try it out once it arrives.