The article doesn't contain much news on the OA-related provisions of the plan, but it does contain a working link to the latest available draft (as of May 3). This permits comparison to the latest version available from the WHO (dated July 31, 2007). Of note is the language in element 2.4, not present in the previous version:
(2.4) Promoting greater access to knowledge and technology relevant to meet public health needs of developing countries ...
(b) promote public access to the results of government funded research, by strongly encouraging that all investigators funded by governments submit to an open access database an electronic version of their final, peer-reviewed manuscripts ...
The open access movement:
Putting peer-reviewed scientific and scholarly literature
on the internet. Making it available free of charge and
free of most copyright and licensing restrictions.
Removing the barriers to serious research.
I recommend the OA tracking project (OATP) as the best way to stay on top of new OA developments. You can read the OATP feed on a blog-like web page or subscribe to it by RSS, email, or Twitter. You can also help build the feed by tagging new developments you encounter.