[Retric]

Stylus adds a lot of accuracy both in where your pointing and how hard your pointing at something. This is great for artists, but unless your creating art getting withing 5 pixels of what you mean is plenty for most interface tasks. So, when job's said how poor styluses are his context was cellphones which nobody uses to create art and using a stylus is painful. In those rare cases where someone actually wants to sketch something out on a cellphone you can zoom in a lot which is not efficient but hey your using a cellphone get over yourself.

As to iPad's the same issues shows up, using a Stylus on top of a screen is less accurate than using a separate tablet, not to mention it's resolution is terrible for creating real art. Sure, it's better than a cellphone, but fingerprinting is plenty for most people's level of artistic talent.

PS: My sister is a graphics artist and she get's sub-pixel accuracy with a cheap qualcom tablet. Covering up part of the immage your working on is reasonable, but when using pen on paper she often rotates the paper to minimize the effect which slows things down with clunky computer controls.