The Professional/Scholarly Publishing (PSP) Division of the Association of American Publishers (AAP) has posted four of its letters to the NIH, objecting to various aspects of the NIH policy, and two responses from the NIH, responding to the objections. The letters range from March to July, 2008.
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.
