N-DSi is not region locked. that's only for online content/browsing.

multilanguage is only for the main menu. it does not only display japanese as u might have expected. so i can actually purchase a unit in japan and bring it over here.

as for the acekard, the shopkeeper did not mention it. anyway, i do not own a nds, only PSP. but the dsi is very tempting and not that expensive. but i only saw white and black colour there.

NDSi update!!!
Japan got new...COLOURS!
Clicky here!
 

and

Nintendo Explain,
I?
stand
for?

click.

ouch,thks for the head up


yeah.. black one will be mine~