Perhaps not of specific interest to the majority of inkscape users, but I was listening to a recent podcast (Floss Weekly - and the interviewee described some experimental work ongoing with javascript and SVG support in the browser to do some neat things. The page is at: if anyone's interested in checking it out.

Note that it will only work in the newer betas of FF3 and in Safari3 I think due to better native SVG support in those browsers.