Hi Ben,

This is something that we mention in our hosted FAQ:

http://labkey.com/hosted/labkey-hosted-faq

All of the data in the hosted server is available to export and use external to the LabKey Hosted server. Any files uploaded to the server or downloaded from the server can be downloaded as well. We don't yet have a simple way to transfer all of the data seamlessly between servers, but we'd be happy to work with users if they want to migrate from a hosted server to a local installation.

Thanks,
Josh