Base implementation up to this point: Foursquare engine complete, object models in place and evolving. Todo's include: Objective-C style error handling (Apple documentation does not recommend using exceptions, overlaying simple UI flow from prior Test Projects - with threaded operations, implementing Instagram and Orbit engines as live content streams. Will need field testing to properly balance phone vs server load for optimal realtime performance. Created git repository entry for Orbit 1.0, go time.