Welp. Nintendo gutted it last night by killing the SpotPass features. Now it's useless unless you have nearby friends that you can StreetPass with, at which point you might as well talk to them directly. Guess that means you can't get updates for games via it anymore - like Animal Crossing or Fire Emblem. I assume that this means that we won't see neat messages about upcoming games or holiday messages from game designers, either.
Darn little kids swapping "inappropriate content" and getting it shut down.