Thats a good question ! But to be honest, I think Apple will manage to remain global leaders in awesome gadgets as Job's vision has already been implemented. His mark has been left and now the current CEO just has to continue with the operations and Apple has nothing to worry about., But ofcourse 10 years down the line, when every1 will be out of ideas, Steve Jobs will be missed..!
He's already missed, at least regarding his presentation skills. With all respect to Mr. Cook, he's far less inspirational in his speeches. My personal opinion is that the presentation of exceptional iPhone 5 will give Apple great chances to beat everyone for the next 5-10 years!
It is going to be very interesting to watch Apple without Jobs. But, someone pointed out that Jobs most likely left Apple with enough ideas to fuel their fire for some time to come.
As for me, what the company is lacking now is not the ideas, but Job's charisma, they have got to maintain and develop the image of company's being the most innovative enterprise in the world, which is also achieved with incredible presentations.
though there are many compititors but from my concern Microsoft is the leader of the software industry.
Then that shows that, not only do you know nothing, you don't read previous posts where it was shown that Microsoft is THIRD or lower behind other companies.