istSOS (http://istgeo.ist.supsi.ch/software/istsos) is an OGC SOS server implementation the SOS service entirely written in Python for exchanging XML requests and responses. istSOS allows for managing and dispatching observations from monitoring sensors according to the Sensor Observation Service standard. The talk will present the latest software enhancements (version 2.0) that include the availability of a RESTful Web API written in Python for automating administration procedures and wrapping SOS functionalities and a Web graphical user Interface written in HTML/Javascript/CSS that allows for easing daily operations like service administration or data manipulation. The presentation will show a series of case study application and will go trough the details of the new features. istSOS is released under the GPL License, and should run on all major platforms (Windows, Linux, Mac OS X).