That's a great idea! Imagine, you're just browsing around, clicking products, and at the end you have a custom shopping card of things you didn't even know you wanted - all you need to do is click "pay." Stripe is taking over the commerce world. Crazy!
I can imagine fashion mags using this type of implementation. It would be wicked if you can combine this with web video. Built-in ads!
EVERYTHING IS A STORE.