Hi Jim, 

> Does anyone know if it is possible to purchase a GSM phone in Japan, unlock
> it and then set it up on AT&T in North America?
> 
> I know that Japan uses a different system, but I did see some GSM phones for
> sale while I was there a few months ago.

J-Phone, a Vodafone subsidiary, sells a GSM phone, but I don't know if
it can be unlocked.

Try visiting http://www.j-phone.com.

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飯嶋 浩光 / でるもんた・いいじま   http://www.ht.sakura.ne.jp/~delmonta/
IIJIMA Hiromitsu, aka Delmonta           mailto:delmonta@ht.sakura.ne.jp