The Sahana community included me as a Project Management Committee (PMC) member. My work with Sahana is in the early warning space with the development of the biosurveillance module and the messaging module.
The first Sahana conference took place in Colombo, Sri Lanka during the last week of March, 2009. I made two presentations (biosurveillance and common alerting protocol) and Prof. Samarajiva one (public warning), which stated our (LIRNEasia's) commitment to Sahana.
Sahana has divested from the original parent Lanka Software Foundation and has been incorporated as a foundation in the state of California, USA. Work is still in progress in establishing the foundation.