SVG 1.1 (W3C januar 2003)
The SVG specification is maintained and published by the World Wide Web Consortium.
http://www.w3.org/Graphics/SVG/
http://en.wikipedia.org/wiki/Scalable_Vector_Graphics
Free from vendor capture?
Maintained by open not-for-profit organisation?
Specification freely available?
Royalty-free?
No constraints on re-use?