Driving right handed with left hand low?

[Skier]

I was searching for info on the movable weights in my Taylormade Burner HT, when I cam across this video from Ireland, that shows a golfer driving right handed with his left hand below his right hand:

How common is this and what does it do?

[trackster]

This is called cross handed (or it is in baseball anyway) and it is awkward as hell.  I wouldn't recommend trying this.  It doesn't really "do" anything per se it is just a different grip.

[Jmdmbike]

One of the contestants from the most recent Big Break hit his shots this way. Looks very uncomfortable but he did well with it.