We love PodPress and have been using it with great success for some time.
But the latest upgrade seems to have caused some kind of a conflict. I have a large multi-site WordPress install (3.0.1), and after upgrading to 8.8.4, many of the sites have white screens of death. Both front-end and dashboard are blank white screens. These are sites which do NOT have PodPress activated. The sites using PodPress seem to function fine.
I checked the error logs on the server and found this PHP error:
Call to a member function get_feed_permastruct() on a non-object in wp-includes/link-template.php on line 429
I reverted to version 8.8.2 of PodPress and all is well again, but thought you might want to know.
Very possible that this conflict is with a plugin that I'm using that most others aren't--we have a somewhat idiosyncratic set of plugins.
Let me know if there is anything else I add to the description to help.