Apple’s Billion Dollar Gamble Riding On Its Lack of Keyboard

�There has never been a massively successful consumer device based solely on a touch screen� …designers and marketers of electronic devices centers are having a spirited debate about whether consumers will have the patience to overcome the hurdle that will be required to type without the familiar tactile feedback offered by conventional keyboards.
Any significant number of returns of the iPhone could conceivably undermine what until now has been a remarkable promotional blitzkrieg that culminates in the phone�s release June 29.