WordPress 2.7 and "read timeout errors"

Multiple publishers who upgraded to WordPress 2.7 have reported issues with feed "read timeout errors" that cause their FeedBurner feeds to not update quickly if they use our FeedSmith plugin or have written their own redirection rules in .htaccess configuration file. We are still investigating, but one workaround that seems effective is for publishers who also use the Yet Another Related Posts (YARP) plugin. This WordPress Support Forums post details a settings change that seems to resolve the issue.