Please do not use this.

The whole page flashes and flickers for me on Safari 6.0.2 on Mac OS X 10.8.2.

Input of extended characters also doesn't work. Option-[aeiou] doesn't enter any characters. Holding [aeiou] prints the base character but fails to update once a modifier is selected.

The antialising algorithm alternates between subpixel and greyscale, causing flickering changes to the boldness of the text.

All in all, very very broken.