This video is from an April 20 test flight over the Mojave desert. According to Wired, the plane suffered a tail strike and some rudder control issues, but other than that, it was smooth sailing. Unsurprisingly, the pilots didn't really push the plane as far as spacefaring activity goes, but that will come on another day.
For now, we can continue to talk about how Branson is a) brilliant b) God c) badass d) the real life Dos Equis Guy. Because I'm pretty convinced he designed and built WhiteKnightTwo on his own. Possibly using only his mouth. [Wired]