Google has released a post on their Adwords Blog about the pay per action beta test, I called it a MAQ, as they said these were the most asked questions, I guess later it will be promoted to a FAQ.
Do pay-per-action ads show on Google.com or on sites in the search network?
No. Pay-per-action ads are not eligible to show on Google.com or in the Google search network. They’re only eligible to display in the Google content network. Source: Pay-per-action beta — your questions answered
Wow, I would guess a lot of advertisers will skip the PPA test because of this, anyone testing it yet? They also say they are only taking people with US mailing address.
Why would they? HOW could they? It’s risk free!