What about floating menus within the hand’s reach? I’ve been at a talk with FramestoreVR’s tech lead that worked on the AvengersVR project. They did some cool iron-man interface UIs that work very well in VR. I’m thinking skeuomorphism will get old pretty fast. abstracted floating UIs seem a natural part of the VR vocablulary… but not having done extensive work with it… this is only my guess.