The Data Mining Group just released PMML Version 4.1. PMML is the leading standard for statistical and data mining models. Version 4.1 includes support for multiple models, such as segmented models and ensembles of models, and for new models, such as baselines models, which are used in data quality, process control and change detection.
Open Data also just released a new version of Augustus (version 0.5), which includes support for PMML 4.1. Augustus is an open source, python based PMML compliant analytic application that can produce PMML compliant models (a PMML Producer) and read PMML models and score data against them (a PMML Consumer). This newest version of Augustus also includes new support for streaming analytics.