By Garuda.Shizukat 2009-06-22 05:15:57
It's probably limited because of programming issues. And if they inteded to release it worldwide from the beginning, then it's also to make it possible to talk to people.
Can you imaging having a regular American trying to type my name in Kanji (even if it's simply hiragana/katakana) without a japanese keyboard, or the knowledge of how to use the IME ?
And also this way it's a lot easier to filter out offensive names :p
(I'd give what Shizukat would be in JP if I made it, but at work atm, and can't type Japanese on this PC)