/// comments in Unity

Just found your question and i was wondering where exactly do you want to display which information from the xml documentation? The only thing that might be useful would be the class description in the inspector. This is possible but you have to write a custom inspector for your class. An alternative would be to attach an additional script which displays the documentation of another class.

Descriptions for properties and fields would be nice. Maybe as a Tooltip or so...

Writing a custom editor would be awesome but i don't know if its feasible. Maybe I'll look into it some day.