Was at a conference this week. "Have a card?" Reaching into pocket takes 5 seconds.<p>Doing it via an app? Pull out phone, unlock it, scroll through your pages of apps, open it, start typing, hope autocorrect doesn't mess you up, "wait how do you spell that?"<p>I actually think there's a lot of good use cases for the way this app operates, but I'm pretty sure everyone will still be carrying around analog cardboard identifiers for years to come.