I took a test drive of the new PayPal mobile app with Hill Ferguson, the company's vice president of global product. It gave me a new appreciation for the humble credit card:
We pay for things in so many different ways that it’s hard to devise such an app to handle our payments. Meanwhile, the humble credit card remains a tremendous single-purpose tool for spending money. Whether buying smoothies or socks or a restaurant meal, we use it in the same way each time: by handing it to someone to swipe. We might lose out on the ability to order ahead or pay for a bar tab without calling the server over, but we gain immeasurably in speed and ease of use.