From: http://cosmiclog.msnbc.msn.com/archive/2008/08/27/1295499.aspx
"Less than a month after its public debut, the Rocket Racing League is putting a bigger, more powerful prototype plane through its first flight tests - and the results are so impressive that the craft's rocket engine will be adopted as the standard for another five racers, the league's chief executive officer says."

Armadillo's Carmack was pleased as well.

"I am very happy with how the tests are going - the first three flights were done in the first 24 hours we had clearance and cooperating weather," he told me in an e-mail today. "We have been ready for a while, but the FAA held our R&D permit until after XCOR flew at Oshkosh, then two weeks ago we were up in Oklahoma and had rain or cloud cover all week."

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I'd sift this, but the "embed" (iframe) isn't valid, but does work here.

Edit, sifted a YT version