[Zope] ZODB export to other DB/format?

Hi, I made an effort to look through the FAQs on zope.org and couldn't find a definitive answer, though the ZODB faq hinted that my fears are warranted. If I deploy a site and store content in the ZODB, what are my options in terms of automatically getting it out of there and into another DB or format later on? I just installed Zope tonight and have been going through the exercises in the O'rielly chapters on the website. It's _really_ impressive, and I'm considering using it and learning some Python instead of the homebrewed PHP/MySQL Content Management App I've been working on, but without a good exit strategy should I want to migrate away from Zope later, I'm hesitant. Can I get an authoritative answer? -Justin Knoll