To understand the iPhone Duo and its ability to turn sceptics into believers, you could do a whole lot worse than crib from the wisdom of Jay-Z. Sure, Steve Jobs was a noted fan of Picasso’s “good artists copy, great artists steal”. In this case, Hov called it better with “you made it a hot line, I made it a hot song”.
The point? Folding phones have been around for almost eight years now. A few of them are seriously accomplished devices in their own right. None have the ability to…

