Hi everyone. I've been working on this at Google for a while and would be happy to answer any questions you might have. If you don't want to ask here, feel free to email me at AT google.com. There might be a delay in responding if I get a lot of messages or if you have a particularly challenging question.
One would have to be a fool to use this, knowing Google's arrogant heavy-handed history of dealing with AdSense publishers (and an absolute lack of any meaningful customer care): this is why Google Wallet has never taken off as an alternative to PayPal in the first place.