I met Paul at LinuxWorld last month and was amazed at the depth at which he and other Digital Creations [1] folks had considered metadata issues when planning the present and future of Zope [2]. In particular, the level of commitment to standardized metadata is terrific; specifically, the new Content Management Framework [3] supports Dublin Core [4] in every manageable object (is this the first large scale cms that does so?). Paul and Ken graciously agreed to an email interview for oss4lib. They've answered oss4lib's questions, which cover a lot of metadata ground, among other issues, and the whole interview's available here [5].
Links:
[1] http://www.digicool.com
[2] http://www.zope.org/
[3] http://cmf.zope.org/
[4] http://dublincore.org/
[5] http://oss4lib.org/readings/interview-everitt-manheimer-2001-03.php