Create .po - files for content

Hello,

I have installed the i18n module, and have already set up different languages and translated some content using the webinterface.

Drupal supports po-files for the drupal-interfaces, but what about the content? Can I export the strings I added myself to a po-file, too? This would be extremely useful.

I only found a contributed module for exporting to an xml-file for professional translation programs, but I usually use po-files for everything.

Sorry if I overlooked something obvious.

Regards,

Andreas