I've taught the shorter, rhetoric-based version of this text before, and now, after having moved away from it to teach other texts that seemed even more "democratic" than this, I'm returning to this text next semester because other texts simply don't inspire students to begin writing with near as much purpose and confidence as this one does. I've ordered my copy of the 2nd edition, actually, which comes out on 15 November 2011. The rhetorical chapters haven't changed;
I'm sure they'll contain edits, perhaps a few updated examples, but the "moves," from summarizing to quoting to responding to saying why it matters, haven't been altered. What they've done is added another set of readings to the orginal sets, which dealt, respectively, with fast food, pop culture, economic mobility, and the notion that the American way of life is under assault. Also, they've updated each of these sets by adding several more timely essays, notably essays by Michelle Obama, David Foster Wallace, and Tom Bissell.