this. OP should keep in mind that any user interface is built upon learned, flexible metaphors for the data it represents... files and folders are a metaphor th

this. OP should keep in mind that any user interface is built upon learned, flexible metaphors for the data it represents... files and folders are a metaphor that break down for some use cases and work well for others... I always have a hard time taking anyone seriously who thinks that these metaphors can be fundamentally improved. A metaphor that's intuitive for one person could be completely confusing and out of context for someone else.