Noting that he could stand to gain a few pounds, Steve told Jim that he's "...doing fine" and "...surprised" by all the speculation over his health. Maybe he's just a skinny dude?
You can watch the full video here. Steve is such a salesman, watch him launch into his pitch before the 1 minute mark. He also addresses some of the problems of the past year, saying "We strive for perfection. Sometimes we achieve it and some times we don't ... it's our job to fix those [bugs]."
It was a good interview, though nothing we haven't heard from Steve before.