No offense guys, this isn't breaking news.

Not only can any bmxer do this on a 20incher. But, any BMXer worth anything can get on any one of our track bikes and do this.

I used to ride BMX and Fixie in SF back in like 2000 at the Clocktower (embarcadero and market). I would ride my fixie down there and my BMX buddies would bust out crazy sh1t on my fixie. With no experience on fixie, they could skid, track stand, ride backwards 360, ride backwards straight. I wouldn't let them do jumping tricks.

As far as bike control skills go, it's like this:
1) BMX flatlanders
2) Trials
3) BMX Park/Street