I was once in a team designing teaching tutorial for heart diseases. Wearing special helmet, gloves, entering a room with three projectors. You can "go through" those blood vessels, "touch" those blood clots.
The virtual reality programing at that time was very awkward, But I believe there are better framework and language, model libraries now. Eventually we will get rid of mouse, keyboard, mic and earphones.
The look-real items on Internet Explorer will replace those menus and web links for sure. Microsoft SilverLight product will deliver those fantastic functions. The virtual reality devices, like those Home Cinema Systems, will be prevalent in every family living room.