I work at a small planning commission as 1 of 2 GIS people, where we have 2 ArcGIS licenses. A volunteer recently starting working with us. He is using QGIS and mostly editing shapefiles. I probably should have considered this question first.... Do ArcGIS and QGIS play nicely together? Ultimately everything will end up in ArcGIS, will there be any issues editing shapefiles or geodatabases in QGIS and then opening and/or editing them in ArcGIS? I don't know if I am pushing it here asking another question... If map annotation is edited in QGIS, can that map be opened in ArcGIS?