This is awesome, so very awesome. Scott McCloud's written a lot of real intelligent stuff about microtransaction/digital currency programs, and implicit in tha

This is awesome, so very awesome. Scott McCloud's written a lot of real intelligent stuff about microtransaction/digital currency programs, and implicit in that, why they haven't worked out in the past. I'm hesitant to say bitcoin is The Answer, but it (combined with some other qualities of the internet and modern UX/UI) presents a plausible implementation. To paint with a broad brush: cost is both financial and temporal. A successful digital payment/microtransaction system has to reflect this fact. The time cost of paying some amount of money should not outstrip its monetary value. Having six options (or worse yet, having to type in an amount) for payment size and three confirmation screens is infuriating when you want to transmit the digital equivalent of a quarter or so. My two satoshis: I'm not sure how it will ultimately be implemented, but I think bitcoin (and its subdivided units) is a good way to build low-friction payment schemes.