[citation][nom]enewmen[/nom]Living in Singapore, we already have "smart" credit cards and cash cards. They look like credit cards, but have a chip like a phone SIM card on the end. So, you don't need to "swipe" - just stick the card in. You can also keep the card in the wallet, so at McDonalds, 7-11, or the subway (MRT), just swipe your wallet near some reader, then things get paid automatically.The Electronic Display Cards takes things further.[/citation]
how does haveing more than one card work?
i know we have a few cards, one for small, one for big, one for medical (provided by insurance company)
lets say all 3 can swipe like that, how does that work?