Are there any plans for having the ArcGIS Web AppBuilder available on github? The community is building a lot of widgets and it would be nice if we could contribute to the platform (e.g. forking and pull requests). This would also make it easy for Esri to push good widgets done by the community to the core platform. It's a win win for everyone so hope you do it. There is no reason for not doing it since the entire source code is available for download.