Oh wait, I take it back. I can think of a image format that retains the spirit of XML:
<gimpimage> <comment>Created by the GIMP!</commment> <layers colorspace="rgb" bitdepth="8"> <layer width="6" height="6"> <row> <pixel r="127" g="127" b="127" /> <pixel r="127" g="127" b="127" /> <pixel r="127" g="127" b="127" /> <pixel r="127" g="127" b="127" /> <pixel r="127" g="127" b="127" /> <pixel r="127" g="127" b="127" />
You know what is really scary about that...
About 6 months ago, someone posted to the SVG mailing list a proposal for an XML-based raster image format that pretty much exactly that...And he was SERIOUS about it!!!
Leonard