The violin is an amazing instrument and unbelievably difficult to play well. So while I don't want to detract from the guy in the link you posted, which I thought was unbelievably talented and making some really cool music, I don't think he's quite up to Joshual Bell's standards.
The video for the event Raka posted about is here -->
http://www.youtube.com/watch?v=hnOPu0_YWhwI'll go post that on the other thread now as an update...
Also, here is a really nice example of his work during practice:
http://www.youtube.com/watch?v=zgIMDUHtCtw&mode=related&search=As you can see, it's definitely a different genre of music so it's hard to compare... But I think Joshua Bell is generally considered to be one of the best classical musicians alive.