I've been doing a lot of 2D vector format munging at work recently - hey, I even wrote a little PDF interpreter which munges PDF to Flash. I think I might have had a dream about vectors. Flash isn't quite as evil as I remembered. The most annoying thing is that Flash's drawing primitives are much more, errr, primitive than PDF's. Adobe (the PDF people) bought out Macromedia (the Flash people) last year. I can but hope that they add support for dashed lines, line cap styles and line join styles. Pretty please!
