With the launch of the new website yesterday Yahoo Publisher Ads looks to now be out of the beta version/testing and are live! I am hoping the new version will allow ads to show up internationally. I have not dug deep enough to figure that out yet, but I am very happy that Yahoo Publisher Ads is live and everyone can get a taste of freedom away from the "other" major ad program. I love Yahoo! Publisher Ads because of how nice the customer service is, and how they actually get back to you ... unlike the "other" major players who just seem to not give a crap.
I would just plead to Yahoo to keep up the good work and keep the customer service at the same level now that they will most certainly be getting bigger and more popular!