Totally sounds like a really cool function that's only half-baked and kind of useless for most people. I kind of hope that the PSV has something similar, but I know that it would probably suffer from the same lack of connections that the 3DS does.
That actually reminds me of MGS: Portable Ops and how you could recruit new soldiers from any wifi signals in range of your PSP. It was neat, but aside from inside my own building it was a pain to lug around the PSP (not that it's a "pain", but you know what I mean) turn the game on, then "recruit" by searching for wifi signals. It would have been way better if the PSP had just archived the soldiers that each signal provided and then when you turned it on they were there waiting to be recruited. Oh well. It was still a neat feature.
Anyway, poor Nintendo. So out of touch, basically making kiddie toys that are at least as, if not more, popular with adults than kids.