The future of checkout I envision will be with a smart watch.
Go to walmart, seven eleven, or any grocery store, do your shopping, the cashier activates the bill using NFC and you get it in your watch waiting for a confirmation.
The cashier gets your pic from the profile saved in the watch so she knows you're the real owner of the watch.
Extra security with a fingerprint, a 4 digit pin, or a secret swipe before sending the money from a credit card stored in the watch profile.
And that, my friends, is how smart watches will conquer our world.
