I’ve been experimenting with ways to add small, focused, utility actions to my maps. This could be something like clicking on the map and doing a buffer analysis, or double-click and query some data, and so on, I think you get the idea. I’ve called these behaviors, I’ve seen them referred to as Map Actions or Feature Actions when they interact with FeatureLayers.
It’s not earth shattering, but it is kinda cool. Plus, you can see how you might utilize the ViewModel of an out-of-the-box widget without having to use the widget itself, which is really neat!