OK, here's the breakdown from all those slides to get parallel loading (on new browsers) and avoid FOUT (flash of unstyled text) each pageload:
Seriously. FLOUT is NOT in any way bad. Stop trying to hide the unstyled text, I don't have 20 minutes to wait for your shitty webfont to load. If you do hide your unstyled text, I'll instantly leave your website again.