X3D is a royalty free XML based standart for 3D
graphics. Even though Wings3D wouldn't be able to get
the most of it's possibilities, it would be really
great if it could export models in this format.
Specifications along with DTD and Schema:
http://www.web3d.org/x3d/specifications/x3d/
Developer tools:
http://www.web3d.org/applications/tools/developer_tools
/
Importing X3D would be valuable as well. As a new user to all things 3D, Wings is the easiest program I've dealt with, it would be great if X3D were supported.