I think for this article this is the most pertinent and soon to be relevant to americaIt can also identify bags shoppers are carrying and pass the information along to stores for marketing purposes
There was a feature on NHK news a couple weeks about this. The 'no need for cashiers' store is soon to be a reality- japan is implementing stores where you just walk in grab what you want and walk out and the amount is just detracted from your bank account.....
although that poses certain questions which I guess will be addressed whenever the technology reaches america
a tangent to this story is the new cell phone that works as a debit card.
why dont I live in japan?