Please Help, Pictochat?

Can someone please explain to me how this works, as I got my DS Lite the manual is in jap so im really just wondering is pictochat for use with people in close range to you with a DS of there own or is it a global programme where you can chat to anyone via wi-fi?

Im guessing its the latter, problem is I cant pick anyone up on there, I know my connection is good as I play mario kart online and my signal is perfect but how do I go about chatting to others within pictochat, when going into one of the 4 rooms there is never anyone in there.

Cheers all

It is for people in close range to you. It would be nice if it worked over the WiFi though. If Nintendo is smart I'm sure they will eventually release a DS game that will be like Pictochat but WiFi/Voice chat capabilities.

Ah thats a shame, so I cant talk to people over the net? It seems like a bit of a waste of a decent programme? If games like mario kart can be played around the globe I dont see why this wouldnt work and has not been implemented as standard.

It doesn't work on WiFi because Nintendo is paranoid that you'll draw pictures of penises to little kids. So blame the little kids that you can't use WiFi picochat or VOIP Chat.