Presentation from AWS re: Invent, where Mortar announced it's public availability on stage. Mortar facilitates Hadoop data development in two parts: an open source data development framework (like Rails for Hadoop) and a PaaS (like Heroku for Hadoop). The open source framework allows for sharing/repeating/maintaining code history, automated testing, and one-button deploy. The PaaS provides high availability execution, full job history, and helps users identify problems.