Development of Apple's iPhone began in 2004, when a team of about 1,000 employees began work on the highly confidential "Project Purple." Their efforts fundamentally changed the cell phone industry and prompted the development of a host of increasingly advanced smartphones that essentially function as mobile computers. Apple CEO Steve Jobs unveiled the iPhone on January 9, 2007, at the Macworld Conference in San Francisco. What business did he prank-call as he tested features for the audience? Discuss (http://forum.thefreedictionary.com/postst51677_First-iPhone-Announced--2007-.aspx)