Yup.
6.
You have to be connected to wifi.
You find were you can use it
if you are talking about your Nintendo wifi id you get it when you go on wifi
You can bring you ds with heartgold in it to a local gamestop, and receive it through wifi
first of all, u need internet and good connection, then u go to gts an connect.
It is a wifi event and has past.
that or u can use the action replay . . . that's what i did
Any Pokemon you want to.but you cant trade Pokemon you get from events over wifi
I'm not sure if you can wifi trading with Pokemon platinum because I have it already
in a shop (eg JB-HIFI Dick smith) hope this helps