You'll see them once people get them in their hands. Apple doesn't release these early to reviewers like they do the iPhones.I haven't seen many benchmarks unfortunately, because most people seem to focus on the "wow" numbers, like "wow that h.264 encode went fast!" and not on more general purpose stuff. Now Intels benchmarks are biased of course, but if their testing is any indication, then yes.
I would love to see some neutral objective general purpose benchmarks for comparison purposes.