Win one with a lottery or any contest.
Yes, the DS is region free.
because you can get it without buying it
You go to the Club Nintendo website, make an account, then use the points you get from buying Nintendo products, to get free items that you can use (download, print...etc)
maybe
No, nothing in life is free.
you can adopt them
it is free unless it says pay to play but everything else is free.
Worldwide it would be the Playstation Network without a doubt. They have more membership than Xbox 360 has sold consoles. In the USA it might be closer because there are more Xbox 360 consoles, but the Playstation Network is free and has the PS3 and the PSP and PS Vita using the network.
Nintendo DS games are region free, it doesn't matter where they come from, or where the console comes from, they are still compatable.
on a comuter
you cant.
because you can get it without buying it