yesterday Jobs introduced two models of a redesigned MacBook Air, an 11-inch and 13-inch. Both are very skinny (less than .11 inches at the thinest point) and weigh in at just under three pounds. Two very explicit feature choices enabled that: leaving out the optical drive for loading discs, and the decision to drop the hard drive. Instead, there's just flash-based solid-state drive. And there's going to be more where that came from. apple went as far as to say in there meeting that they see the entire direction of there notebooks going this way. The 13 inch 256 gb is the most expensive and most advanced model. It is said to have a retail of over 1600 dollars when it is launched sometime this summer.