I imagine the star trek interact can really apply arbitrary forces. So you can simulate a knob for example. Not just a tactile sensation when you're already in (near) contact with the interface.
A bigger thing (for me) is being able to sense gaps/shapes without pressing anything and a fixed layout - touchscreens are about the change but that's only good for UI that you look at.
Something that creates physical feedback is for example that Disney VR project where they use air to create the feeling of resistance