Ok, the fact that many assume immediatly that this is photoshop is very detrimental to photography. This is a very possible, very easy effect to do with a flash (i would actually guess the photo to be taken with a studio light that burst about halfway through the exposure.), tripod, and long shutter speed. So, lets say i set up my lighting how I want it, and have my subject do a few test runs to find out where to point my viewfinder, and to gauge how long the exposure time needs to be. Flash is a very useful way to stop motion. So the boarder does his slide, I open the shutter, wait a split second, fire my flash, the exposure finishes. You can see that there is blur on both sides of the sharp board. A wide angle lens was used, which probably accounts for not as much blur showing up on our boarder.
Thats how I see it. Photoshop is a good tool, but by far not an end all tool.