[kudo]

oh right, thats another thing..
for ppl who want to use their cellphones in japan, look to your provider about overseas phone rentals. They will give you a phone to use over there (for a fee) or they'll enable your sim to be used in a rental phone in japan.
Then you can use your SIM and be charged by your home provider as you use a rental in japan. rates depend on your provider. or you can get a rental in japan (theres always one in the arriving airport where they will give you one) and be pay per use. ^^