is there an SVG datatype for ami yet?
I don't think so. It is a very complex format to render completely. The Mozilla team has been working for years on a SVG renderer for Mozilla and it's still not in the Mozilla builds by default because it still isn't completed.
I'm currently working on a vector graphics drawing library for Amiga-Anywhere, but it will be nowhere near as complete as SVG and the vector graphics will most probably be in a binary format (XML is a bit big, for PDA's I prefer small filesizes for the image data

Regards,
Onno