Dice-stacking: crazy party trick, insane waste of time, kind of awesome

How many of you have heard of dice stacking? It's an (apparently) new game in which you lay dice out on a table, pick them up with a cup, and with a few flicks of the wrist stack them on the table. Sounds pretty blase and lame until you see the following video, in which a young dicestacker (?) accomplishes some seemingly impossible tricks using nothing more than a plastic cup and four (or eight) large casino dice. Crazy.