I already applied the patch, so can't show the difference between unpatched Fedora and Ubuntu, but you can see it yourself.

Open this page: http://www.infinality.net/files/font.html, set the font to "DejaVu Sans", and scroll down to 14px.

Compare to these screenshots:

- Fedora 14, patched as above: http://imgur.com/Y2JV1.png

- Ubuntu 10.10, default: http://imgur.com/2WgdM.png

- Mac OS X 10.6.4, Firefox: http://imgur.com/KGK7T.png

I'd appreciate if someone posted screenshots of this page with default unpatched Fedora config, and with unpatched subpixel-enabled Fedora.