Both online publications have worthwhile articles, but while IGN's is intended (and named) as a PotBS Primer, the GameSpot interview with Williams focuses on the game's launch in Australia. Williams says that there is no retail launch planned at all for the Australian market, and that PotBS will only be available as a digital download through the aforementioned deal. He also says that there will be Australian servers -- although they won't actually be located in Australia. Check out both of the articles from the links below.
GameSpot: Flying Lab Software on Pirates of the Burning Sea down under
IGN: A Pirates of the Burning Sea Primer