Should I sign up for an unlimited data plan for Japanese cell phones?

If you’re like me then you want to know if it’s worth signing up for the unlimited data plans offered by Japanese keitai companies. I use KDDI and conveniently lost my old phone somewhere between South Africa and Hong Kong, so upgraded to a smartphone when I got back to Japan. I spent awhile digging around the KDDI web site trying to figure out if it was worth signing up for their unlimited data usage plan. In short :  Double Teigaku Plan :  4.8MB – Unlimited    :  2,100 to 5,900 yen IS Flat Plan        :  Unlimited            :  5,400 yen Cost Breakdown… Continue reading Should I sign up for an unlimited data plan for Japanese cell phones?