[Termite_Commander]

By the way, in response to my own question, I'm guessing that the record broken was from point A to point B in a privately developed rocket-powered plane, which is why Air Force and NASA developed vehicles wouldn't have qualified for breaking it (since they're government funded).

[Dan Evans]

It looks like this may be a distance record for for take off and landing of a rocket plane. So the NASA planes would not qualify because they were dropped from a larger craft:

"As far as we know, it'll be the first intentional cross-country flight of a rocket plane...and the first roundtrip under power,"

http://news.yahoo.com/s/space/xcorrocketplaneeyespointtopointrecord