@novolo: Have you tried it?
I did try it - though it seemed likely that it would not work!
And............
it did not work - at least with furls on it did not work.
After a quick perusal of the resulting html (after the the js runs) it seems that:
Either the rewrite rules it needs conflict with the rules used by furl,
and/or
the base url thing it does breaks things.
It seems to get rid of the base url and adds
<html class=" rwd-imgs-lrg">
-
I’m sure it could be made to work with Modx but it is going to require one or both of them to have some modifications so that the two play nice.