What is Back I/O's pricing model?
Back I/O is currently in open beta, and we haven't announced any pricing yet. Expect pricing levels to be competitive, and suitable for 1-man startups through to enterprises.
Is Back I/O Open Source?
Back I/O's mission is to deal with the complexities of designing and managing server architectures for developers, and as such, we chosen to keep the platform as a proprietary, fully-managed service.
Where/How is my data being stored?
Back I/O currently runs on Microsoft Azure. Data is stored durably in a modified version of PostgreSQL, configured with hot standbys and scheduled backups.