By Jim Karpen
In addition to the Macworld session on the future of mobile devices, another great talk today was by Macworld magazine editorial director Jason Snell on "How Apple Does It" -- how does Apple so consistently succeed in making insanely great devices. It comes down to two things: courage and vision. Apple has the courage to be different -- to come out with a new king of Macintosh interface at a time when other computers used a command line. The courage to come out with a smartphone that did away with the buttons and used a touch screen instead.