All, I've implemented support for dynamic, arbitrary extensions for Shindig's REST API. I consider this to be a much-needed improvement, as fields do not need to be explicitly predefined/hardcoded/maintained on Shindig's back-end to be handled by Shindig's REST API. I've submitted a patch to JIRA which enables dynamic extensions for Activity Streams: https://issues.apache.org/jira/browse/SHINDIG-1547. To add extension support to other data models, simply extend ExtendableBean. Check the JIRA for more detail.
Thanks, Eric W.
