Ds Suitcase.

[Joe]

Okay, Wehn you go search for a gate, You can do Nintendo WFC or DS Suitcase,
If you do DS duitcase, and go to your DS town, Do you lose everything in your wii town? and get everything from the DS town?

 

[SamXX]

No I don't quite understand this fully myself but I think what you can do is import your data from your Wii to your DS, then you take your DS to a friends house and it lets you play without using WiFi...
I think anyway.
Also I know that your Wii and DS game are not affected and that you don't even need a DS animal crossing for it to work.