Think you're having a busy day? Try delivering a keynote and travelling 2,000 miles to sit next to Michelle Obama for the State of the Union address. All in a days work for Apple's Tim Cook!Related StoriesWorking for Steve Jobs: 'for technology to make sense, it had to touch lives'AAPL action as investor threatens to sue and Apple issues statementAAPL latest: Apple's Valentine's Day gift, AAPL bes