Maybe building on the Visualization feature, i'd love to be able to create a hierarchical map of the products and product lines in Aha. It could be in "mind map" style, or basic hierarchical org-chart style.
Since this data is already intrinsic in the model, it could be auto-created. Even better, when things change, the map automatically changes. That's why I want to have this feature directly in Aha - I don't want to have to use an external tool to create the map, which will be a static document, and inevitably become outdated!