I would like a widget that lets users switch from one web mapping application to another where it passes the extent so that the newly opened web mapping application opens with the same extent. Ideally, it would also have common layers turned on/off. User interaction would be similar to the Basemap widget.
Someone earlier requested a widget that would allow users to switch the underlying Portal web map. That would pretty much accomplish the same thing, although changing between web mapping applications also may change the widgets available to users.
Another widget would be one that runs when the web mapping application is opened and parses the calling url so that a specificed layer would be searched and the features would be zoomed to when the web mapping application opens. This is needed so the web mapping application can be embedded in other systems and open zoomed in to a specific feature.