I almost sure everybody has already seen this, but the video tickles me. My first impression was "How cool! But he's probably not really a verger." I suspected an actor or someone just dressed as a verger. However, The Daily Mail ran a story about the verger and the Abbey's reaction, so I guess he must be the real deal.
[Update: I've just been chastised by my mom: "Why do you think this isn't real? It is a 'thing' for clergy to do cartwheels. The pastor that married Jeff and Erin did cartwheels on Easter at Each service." So there you have it! ;-) ]
The funny thing is, I came across this picture on Flickr, and it's captioned "One day when the time is right, i will cartwheel in the abbey"