Online storage most likely, you use your Wiipoints to rent a database online, which keeps your wii channels up to date and stuff like that; who knows what they will do with that from there on.
The Wii is on 24/7 so you won't have to wait for the pesky stuff to load as long as your Internet is going.
I'm Unamerica and you can too.
The Official Huge Monster Hunter Thread: