The pointer is never as precise as I want it to be- mine is always a few pixels off, and every other tablet I've tried has been worse.  You can argue or justify etc all you like, but I have always found this very disorienting.<p>Handwriting recognition is also approaching perfection, but it's not quite close enough yet.  Maybe for some people with good handwriting it is 'there', but I'm not one of them, and I have to stop and correct a word too often.
Plus, symbols recognition is tricky, along with words not out of the dictionary, so command prompt and programming are not fun.<p>Yes, stylus + touch screen &#62; touch screen, imho.  However, correct me if I am wrong, but Mr. Jobs did not show a stylus once during the presentation.