That’s awesome: Moo Adds Programmable NFC Chips To Their Business Cards.
One NFC card is going into every package of Moo cards you buy and Moo is planning to release an app that will let you read and program the card on the fly.
You don’t really need more than one NFC card – touch it to your contact’s phone, and they’ll have your information. You still need the paper business cards – for all iPhone users out there who don’t have NFC in their phone.