Originally Posted by
YVR_Kuma
This SIM card from 3 will allow you to roam in Japan:
http://www.three.com.hk/website/appm...&pageid=611001
You can actually purchase it in the electronic store at the arrival hall in Hong Kong (across from the mini food court, next to the 7-11). I got one last time I went back to Hong Kong... I also love the 3G data usage (1MB for $2HKD), which is handy for looking things up quickly if you are lost in HK..
Thanks for the quick reply. I'm actually going to Japan first, then HK the week after. Hence why I need to purchase it from eBay first.