At some point, I hope the traditional help viewers, like dexplorer.exe for MSDN local help, can evolve beyond the traditional tree view of categories into a view with the ability to display more information.
For example, it might be useful to have a 3D look where each node could contain more information than just a category or item title. In the diagram below, each node contains some information about what is contained below (category counts, item counts, content ratings (pulled from the online site), and a star if you have a favorite underneath the node. The color coding could indicate where...