Having recently found out about LiveBrush I decided to give the free version a try. I was impressed with its capabilities, but as it didn't include a vector export, I decided to splash out $10 on the full version. I was a little disappointed that the SVG line export exported just that, and not the little floral doodads (Decos) in the attached graphic. I know that importing the .png into Illustrator, XDP, Drawplus, VectorMagic etc. goes some way to resolving this, the vector result isn't perfect using any of them. Perhaps I'm missing something in the export process in LiveBrush which someone could explain to me, as this method of creating this type of vector graphic would be extremely useful. It also produces splats, celtic patterns and all sorts of other useful designs.
Warning:it's a bit of a time-waster, though.