My Wii number

Today I discovered that Wii allows you to send and receive emails from the message center. My Wii Number is 5792180862955168 so if you want to send me a wiimail, use the following address: 5792180862955168@wii.com. From what I hear Miis from other Wiis can mingle on my Wii. I am not sure if I need to do something to enable this feature. If anyone knows better please advise.

I would love to see some new Miis in my plaza ;-)