What do you mean we're not supposed to know about them yet? I'm sure Nintendo USA knows of these devices we use call the computer and this place called the internet where we can find out about these things.
As for the events, you're going to have to find someone from Japan if you're looking for one in that country. It's been almost a year since D/P has been released there, so it would only make sense that they have a rare Pokemon give out event. Otherwise, it's gonna be awhile until we hear about such an event anywhere else.