http://www.quora.com/Steve-Jobs/I-truly-want-to-become-another-Steve-Jobs-What-should-I-do?__pmsg__=+UTV1a2t5cEJqcWJTMFVTZHVHWG06YS5hcHAudmlldy5wbXNnLmFsbC5Mb2dnZWRJbkZyb21MaW5rOltbMTI4OTg4NDhdLCB7fV0*
To answer your question is an act of conceit because it assumes that the answerer has Jobs all figured out in some deep, deep sense. Let me start with the disclaimer that I can't claim that at all. I have never worked at Apple or interacted with Job in any other capacity than as a consumer of his products or a student of his life. At the same time, I am drawn to respond because I find a lot of the deification of jobs unhelpful and unconstructive. In any field of life, when someone hits the ball as far out of the park as consistently as Jobs did, you don't dismiss that person as a freak of nature that can never be emulated; you try your utmost to understand that success and draw applicable lessons out of it. I think that is the intention behind your question. I respect that and so as best as I can manage, let me try to give you an answer.
Somebody wise once taught me that fundamentally, there are two different ways of trying to make sense of the world. Deductive and inductive. Deductive guys are like detectives - they systematically look for evidence or indeed anything that might be evidence, weigh it all up, leave no stone uncovered and finally reach a conclusion at the end of it all. Deductive thinking is the bedrock of corporate life - it requires attention to detail, conscientious zeal and lots of hard work. Most guys who succeed in corporate life tend to be deductive experts.
In contrast, inductive thinkers are hypothesis led - they start with a notion of what is important to generating an ideal solution; their particular talent lies in an ability to generate hypotheses that are economical, insightful and often very creative. Good inductive thinkers also need to be integrative thinkers i.e. have the ability to combine perspectives across multiple disciplines - their ability to do so directly correlates with their ability to generate non-obvious hypotheses that the rest of the world misses.
Who was Jobs? Obviously many things but in my book above all, he was an unparalleled inductive thinker (& doer of course - you wouldn't be talking about him if he had stopped at the thinking). So the first answer to your question is learn to be inductive. In order to be inductive, become a human sponge. Economics, engineering, literature, history, psychology, media and advertising, business studies, natural and applied sciences, music - learn as much as you can. Learn for the sake of learning - the applications will come down the line in ways you cannot yet predict. You don't have to be a polymath i.e. equally expert in everything. Active curiosity, an open mind, a diverse social circle, surrounding yourself with people smarter than you - these will all help. So that is the first point and actually the easy point.
The second point - inductive thinkers can be rather alarming to the rest of the world. Instead of meticulous research or expert references or sleepless dedication, they ask their colleagues or supervisors to believe in their creative leaps. "Trust me" they say. Sadly that is not the way the corporate world works. The corporate world believes in covering its ass in every major act of decision making. Inductive thinkers tend to be misfits in that world. If you want to be inductive, you are probably not going to be very successful in a corporate setup UNLESS you become an entrepreneur like Jobs did. Entrepreneurship is the natural vocation of inductive thinkers because a) it is multi-faceted and b) you can make the calls based on your inductive vision without needing to go through ass-covering gatekeepers. So if you want to go down that route, forget corporate stardom - you will need to get your hands dirty and set out on your own. As early as possible so that you have time to learn from your mistakes.
Third, some of the other traits that are usually associated with Job - incredible design aesthetic, eye for detail, smooth talker (distortion field), aggression (assholeness), determination, etc. - those were all important to his success but I am not sure they offer a template for other people to emulate. Once you commit to being an entrepreneur you also commit to doing what it takes to make your venture a success and that will be different for each entrepreneur and each business.
Finally, Jobs was an amazing guy but dont forget he was at the right place at the right time. You can't make the scale of his success a pre-condition of your life. Do cool things, do amazing things that are inherently cool and amazing because they genuinely make the world a better place in some sense and make your heart skip a beat or few; don't spend your life chasing somebody else's shadow. Seek inspiration, not replication. Good luck!