It looks very nice. But I can't integrate it into a project if I can't guarantee that it will run even if Fieldbook-the-company changes business models next year. When can I deploy a self-hosted version, and how much will that cost?
I understand being leary of business model changes. While we can't make any guarantees in the wild world of startups, we can say that we want a free tier to remain forever, and would give plenty of warning if it were ever to change. A little more information available here: http://docs.fieldbook.com/docs/security-and-privacy
We don't currently have any short term plans for a self-hosted version.