According to a WebmasterWorld thread, Google is sending out more Pay Per Action emails to numerous advertisers, including those in Germany and Australia. Thus, it appears that Google PPA is being rolled out to other countries since it is already available to all US publishers. These advertisers appear to be relatively big publishers for now.
Thus far, some are happy to be included, though others are a bit dissatisfied with the lack of monitoring options.
I don't mind being volunteered, however let me monitor the performance...
Others just are upset that they're advertising competitors' products.
I checked my referral product list and find G has added products of competitors I donot want to promote, on my website.
Since they're still rolling out this as a beta test, we'll hear of more of this feedback until the final product is released to everyone.
Forum discussion continues at WebmasterWorld.