Another vote for chaning the title. Thanks.

IIRC, the DS's wifi radio has two modes of operation: one mode where it behaves like regular wifi, and one mode that it uses for low power conenctions to another DS. I think the second mode takes advantage of DS-specific hardware. (This is all AFAIK) I'd love to be proven wrong though, and I'd love an app compatible with picto chat. :>

-John