I just got this email from Russ Jones of Millicent, a company currently making software for micropayments.
>Russ: when is Millicent set to launch in the states? As I recall, it
>should be real soon now.
We should start staging vendors in late May or early June. Did you want to
integrate MilliCent directly into your website (Windows NT) or use our
remote payment hosting service?
I wonder how quickly this will catch on, if at all. In any case, I'll definitely be playing around with it (and writing about it) once it's released.