During E3, IGN spoke with Nintendo's president, Satoru Iwata regarding their use of region-locking on the Wii U and 3DS consoles. It's worth noting that this interview occurred before the 15,000+ strong petition that asks them to remove these restrictive policies. A petition they have thus far declined to comment upon. http://ca.ign.com/articles/2013/07/03/nintendos-president-discusses-region-locking Microsoft has since reversed its stance on region locking and the 360 had optional locking anyway, the PS3 was region free save for the blu ray, a single game and downloadable content and Nintendo's pre DSi handhelds have all been region free give or take the iQue (the Chinese brand for their consoles). Most technical reasons for the region lock have long been unnecessary (PAL region TVs fully support NTSC signals and have done for decades at this point) to say nothing of handhelds having their own screen, the Wii U having its own screen and everybody supposedly using HDMI or an equivalent as well these days. Most power adapters do all the voltage and frequency combinations and things like Audio restrictions, censorship, safety and RF/Wifi compliance usually fall on the head of the one doing the importing though with the exception of the audio and censorship if you pass one in North America or Japan you will probably pass in Europe and Australia and vice versa.