I don't know about a "key to the world" card...but yes, you do get package delivery.
And if you're an army family, like us, please check with SOG reservations and see if you qualify for their Operation Enduring Freedom (OEF) plan. Gives you 20% off room AND dining while at SOG. Not many people seem to know about this; we had 7 nights in a family suite booked for 1,750 total...with the OEF plan, we now have the suite PLUS 2 meals a day for 5 people for 1,886...wow!
Have a great trip!
HOOAH!