What is so special about it?
If this is the question asked to you, what would you answer or how would you react?
To me, visiting card(s) are like a Gold Mine. In the first place, it is given to you only when you meet a person face to face which establishes the first point of contact and a rapport being built then and there. All you need later is to just flash the card and recollect the event where it was given to you.
You all would have most probably heard about Digital Wallet where you store all your passwords and card information. This is something similar to that. Here you would only store details of all your visiting cards. Sounds interesting? Continue to read further.