IETF54: warning, your GSM won't work in Japan

        a warning to busy IETFers: your GSM cellphones WILL NOT WORK in Japan.

        - GSM is NOT in service in Japan, at all.
        - CDMA is in service in Japan, however, make sure to check if your
          cellphone provider has a roaming option to Japan.
          (my CDMA phone can roam to major cities in the US, Korea and several
          other regions, but I can't tell if the opposite is possible)

        http://www.wide.ad.jp/ietf54/localinfo.html
        has a link to a list of cellphone rental companies.  they hands out
        phones at NRT, so reserve one before you fly.
        (note: I don't mean to recommend any of rental companies, and
        I don't have any info on which is good/bad)

itojun