In file navigation, a preview/info panel is provided to give you a better idea about the selected file. It would be really cool to have a similar method for displaying workflow output.
For example, a weather workflow could display a downloaded radar image in that space. A Wolfram|Alpha workflow could display images or text returned from the API. Even the native 'define' function would be more useful, as you wouldn't have to open Dictionary.app to see the entire definition.
Thanks