My hope is that VRML will be incorporated into existing Web browsers
quickly, so that there is no separate VRML reader.
So, you click on a piece of text and the text disappears and is
replaced by a virtual world. Or you click on an object and the virtual
world is replaced with an HTML page.
Otherwise, navigation histories and hot-lists and other nice UI stuff
the "standard" browsers give you will be hopelessly broken.