SW Graphical Notation

RDF/OWL have well-defined technical encodings (xml, turtle, etc) but there is no such common/accepted representation for a graphical notation.
That is, a visual representation of an ontology that captures (graphically) all the semantics of RDF/OWL.

I have collected a few examples of various graphical notations here: http://www.w3.org/wiki/SemWebGraphicalNotation

Is there any interest from members of the SWIG to look at this in more detail, and potentially propose such graphical notation for RDF/OWL?
(This could be via this IG or a new Community Group.)

Cheers...
Renato Iannella
Semantic Identity
http://semanticidentity.com
Mobile: +61 4 1313 2206