I'm updating over the air: downloaded and processed fine (although SLOW), then kept bouncing back an error during the verification saying Software Update was unavailable and to try again. For an hour or so i was flashing back to the 80's trying to buy Springsteen tickets (redial, redial, redial!) ...

Just as I started typing this, it finally verified and it appears to be updating as we speak -- just have to threaten it I guess ;-)