In order to realistically examine what Apple might do with its $20 billion, one has to look at Steve Jobs' stated goals from the past plus the biggest threats to Apple in the future. Those two elements are good candidates for assessing how Apple might spend some of that money in the grandest sense. First, there are other small potatoes things that Apple could do.
What Should Apple Do With Its $20B Piggy Bank
What Should Apple Do With Its $20B Piggy Bank