Dynamicland
This seems like an excellent toy, a great tool for education, and possibly a good UI for future end-user systems that mostly live in the cloud. But in no way something that could be used to build those systems.Almost everything that's good and powerful about software comes precisely because it's non-physical. It's probably just a failure of imagination on my part, but I can't see a path where re-introducing a bunch of physical representations of virtual things makes things better for those trying to create, maintain, or understand complex systems.