Head Start v2.7
Version 2.7 integrates a persistence and versioning system based on SQLite. Pre-processing can now be handled by passing JSON strings instead of using CSV files. See search_plos.php for a prototypical implementation of this behaviour - it queries the PLOS API for the 100 most relevant results for a search term and creates a visualization on the fly.
For a demo of this functionality, please go to http://openknowledgemaps.org/mozfest