Not sure about this model... but isn't this feature locked on each and every japanese mobile? That's what I'm trying to get - "mobile/mms" APN from any japanese handset that shows it. I know only softbank/ai@softbank/softbank that is apn for external devices and it is VERY expensive ($200 for 5 Mb with ease)
well, AU is not much better. and their handsets are NOT international at all. You can't use them outside of japan, they loose signal, there are problems even with email delivery (forget about SMS). And I don't like quality of their casio handsets.