The MapWii Team gave us a heads up that MapWii.com, a site based on Google Maps where you can locate your friends by Wii number has made a big update. MaxConsole explains:
On MapWii.com you can now save the 12 digit Friend Code that each online Wii game has, along with your Wii Number. The friend code for each game will then displayed next to the game name.
The upcoming Mario Strikers and Pokemon will reportedly be the first two games to utilize the friend code.