We should start a Dream Code database up.
Dream Codes are for an online feature called the Dream Suite that allows you to visit other's villages in a "Dream". Basically you can look around the town of somebody else without being their friend and without consequence as you are free to wreak havoc. I think there's some other perks to it but I haven't seen that much of the feature so far.
Anyway, my (current) dream code is 5100-2153-1686.
I say current because they say they'll cycle the dream out if it's been outdated for too long.