Marc from POPwings has a solution he thinks will replace traditional business cards. He introduced an NFC-enabled business card at #LeWeb12. Instead of taking a deck of paper cards with you, with his POPwings system you only need one. When you meet a new contact, you merely wave your card near the person's smartphone or tablet and your details are automatically transferred to their contacts. The system also records where you met, using location technology. Watch the interview for a short demo.