If you ask me, this looks like the kind of thing that could revolutionize mobile payments as we know it. See https://squareup.com/ Source: http://www.fastcompany.com/1643271/...r-iphone-ipad-ipod-touch-android-credit-cards I just downloaded the app on my Motorola Droid, now waiting to be verified to receive my card reader. Looks like they need to run a credit check on you first (a bit of a downer there, because frequent credit checks are known to actually lower your credit score) but personally I'm OK with it. What do you guys think?