It seems like one of the prerequisites for a workable micropayment system is an overhaul of interbank payment processing system or establishment of a new one. I have absolutely no knowledge of the current system but I'd be shocked if the same system that manages $100k+ transactions and the risks associated with that can cost effectively process transactions in the <10c range.

There was a comment on the same level as this one referring to flattr.com which seems to be one attempt at a micropayment system. Does anyone have experience with this service or failing that an idea why that comment got absolutely buried under downvotes?