There are now 61 signatures from Fellows of the Royal Society (FRS) on the open letter endorsing open access and the draft RCUK OA policy. The letter had only 42 signatures when it was first released on December 7.
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.