Lance Ulanoff, Mashable:

Mashable recently sat down with Schiller and other senior members of Apple’s executive team including SVP of software engineering Craig Federighi, SVP hardware engineering Dan Riccio, and VP of user interface design Alan Dye for a wide-ranging discussion about how they built what is perhaps the most eagerly-anticipated smartphone since Apple’s founder Steve Jobs unveiled the original iPhone more than a decade ago.

Too much to quote, but a very enjoyable, informative read, all the way through. Well worth your time.