AI OnAI Off
It was easier than I first thought. Escenic exports information as XML files (except images and documents, which are exported as plain files). I recently migrated a site from Escenic to EPiServer which launched this week. The bit that might be a bit tricky (depending on how the HTML is built on the EPiServer site) is assembling the Escenic fields into EPiServer properties. I'll try to put up a blog post about that today.
It took a while to get permission from my client to post the code, but now the blog entry is up, with the code.
You can find it here: http://blog.paddy.se/2013/04/migrate-from-escenic-to-episerver/
I've added the project to a repo on github: https://github.com/PaddySe/EscenicMigrator
I would like to get in contact with anyone who has performed a data migration from an Escenic platform to EPiServer. Have you?