What I learned from Steve Jobs by Guy Kawasaki
I'm not sure about the timing of this article and why it has taken this long to write, seems a little opportunistic. However the information contained here is worth your time.
The part that particularly resonates with me is how Guy describes Jobs' aversion to market research and how customers cannot tell you what they need, as they "can only can only describe their desires in terms of what they are already using".
If you don't know about Guy, he worked at Apple through the 80s/90s and was on part of the launch team for the original Mac.