Hey Takaaki,
I know of your efforts to translate the manual. And your site there is definitely Japanese, I can tell this much ;) Hopefully encoding and wide char displaying issues will be gone in TM2.
I wonder how many people in Japan actually know about Textmate. It is somewhat tied to ruby (or rails more specifically) and seeing that Matsumoto Yukihiro comes from Japan… What text editors are you guys over there using mostly?
The translation of the manual is surely not easy. At first I thought that blog I linked to might be written by you. Maybe this guy can even help you out a little :)
頑張って!
惣流