YABCT: Yet another business card thingamajig.

There are several out there already. All of them require traction to become serious contenders. Bump is probably the best known. Yet, the greatest downfall to any is that each party must be a member of that app.

Paper cards still rule the roost (and with digitizers have become a lot easier to manage). Google App has a business card reader on it. Very cool.

Still, the best way I've seen and used so far is twitter. You meet, like, and trade twitter handles becoming followers right away. Then later, follow up for more info. This is not for the more serious connections where paper cards rule.

Just my opinion