I am writing from a London-based business publisher, and we are writing a new book about the best business ideas of the last 50 years. One of the chapters will cover smartphones, so I need some information about the IBM Simon. Specifically, I need to know: 1. Why did IBM invent it? 2. How long did the invention process take, and what key stages did it involve? 3. What sort of groundbreaking technologies and concepts were incorporated into its design? If you could provide this information, that...