I don't know if this means anything to webcomics or not but my gut tells me that some Merlin-like genius is going to figure out something cool to do with the new canvas tag (reportedly to be added officially in HTML 5.0) supported by the Firefox brower. (It's not yet supported by IE though)

Some of the programs crafted to use this tag include this piece of javascript that will add a reflection to an image; this page allows you to "walk" around in a maze;and Plotkit is "a chart and graph plotting library for javascript".