According to 1UP (linked above), Sony has confirmed that developers will no longer need to submit a game for content approval, which essentially makes the PlayStation 2 an open platform.
Sony believes that now Russian and Indian developers can create low-cost titles and release them in their own markets as one of the benefits in the removal of the certification process.
To quote: For developers and publishers hoping to release their titles to the console market, the content approval process can be notoriously stressful. Having a game bounced back by Sony, Nintendo, or Microsoft indicates that changes need to be made to the near-finished product.
Sometimes this causes more errors to surface, potentially pushing the release date back. But what if the certification processes were to be removed entirely?
According to http://www.gamedaily.com/articles/news/casual-connect-sony-on-developing-for-an-open-ps2-platform/, Sony Computer Entertainment of Europe is doing just that. While addressing an audience of Eastern European developers, Sony Europe developer relations manager George Bain said that developers will no longer have to submit a game for content approval, effectively making the PS2 an open platform. Bain noted that Russian and Indian developers can "create low-development cost titles and release them in their market" as one of the positive effects of this decision. More PlayStation 3 News...