It appears Nintendo has region-locked the upcoming glasses-free 3DS. The news stems from an e-mail from Nintendo’s Japanese customer support.
“The Region Codes are installed in each games and the 3DS itself. If the codes don’t match, you can’t play,” the email reads.
What this means for you and I is that come February 26 (when the system launches in Japan), it wouldn’t be wise to import a system, because your American or European titles won’t play on it. Likewise, when the system launches in North America and Europe in March, imported Japanese will not work on your device.
For reference, the DS and DS Lite were region-free, but the DSi and DSi XL were not.