Larry King LiveAired May 1, 2009 - 9:00 p.m. EDTTHIS IS A RUSH TRANSCRIPT. THIS COPY MAY NOT BE IN ITS FINAL FORM AND MAY BE UPDATED.KING: Tonight, people are calling it the most important business transformation in a generation. Bill Gates, the founder, chairman, and CEO of Microsoft joins us live. Bill, Microsoft just announced its quarterly earnings, and for the first time your revenue from personal computers actually dropped.GATES: The economy is very tough, and that's affecting computer...