Certainly nice, but I didn't even find that attribute in my definition. Is it that new, or is it for enhancing the M$-experience only?
Also, please not that using this stylesheet attribute/property does not improve the loading time of your page. If you can, get around to a more cross-browser compatible way.
For example, on the server-side through
ImageMagick.
_till
P.S.
Sorry for the late reply.
