I will be moving to Japan soon and I have an iPhone 4 with 4.10.1 baseband (From ATT in the US). I'm pretty new to this but based on my research Gevey is currently the only way to "unlock" it, correct? Also, am I right to assume that it won't work in Japan since, at least according to Wikipedia, Japan does not use 112 as their emergency call number? I have found people talking about using a Japanese iPhone in the US, but never the other way round. Any experience with this? Thank you!