Thanks for submitting this - given the nigh-eclipsing popularity of SpaceX on social networks I hadn't heard about this recent launch or Orbital's recent activity at all.
It's interesting how many unmanned resupply crafts there are for the ISS now. Russian Progress, European ATV, Japanese HTV and the Dragon. Now what is really needed is something manned to complement the Soyuz. SpaceX is aiming for it at least.