Two-hundred and forty nine US dollars

I think that specific feature is mostly directed to Japan

It'd be awesome if it really was like that everywhere

It will be most useful there but in America it will greatly increase the chances of finding someone with a common game, as all you'll need is the DS and that games data in your DS, rather than the actual game needing to be loaded and in sleep mode. Just need to be around people with the 3DS, which is infinitely less daunting than finding someone that meets all of the necessary requirements that I just mentioned.

Also I meant StreetPass, for the record.