I guess Sony is making up for the 4 month delay in getting the PS3 to Europe by giving them some things before the rest of the world. First, it was the Gran Turismo HD update for force feedback. Today, it's Super Rub-a-Dub. The game is now available for download for 4.99 Euros. There's a demo available.
To buy the game, you have to download the demo and the game unlock file (which is what you buy). Maybe Sony should explain that a little better.
Hopefully we see this in the US sometime soon.