Opera is not open sourcing their engine as it doesn't fit in with their business model (they earn revenue by licensing their engine to companies like Adobe). Ho

Opera is not open sourcing their engine as it doesn't fit in with their business model (they earn revenue by licensing their engine to companies like Adobe). However, where ever possible Opera encourages open standards and openness. They have been amongst the strongest supporters of Ogg Theora and now WebM. Their DragonFly developers tool is open source. Opera's Ogg Theora video player is based on open source gstreamer. http://sourcecode.opera.com/gstreamer/ http://sourcecode.opera.com/gstreamer/ Also notable is Opera's opposition to software patents and their contribution to the W3C and WHATWG.