Unless someone is opposed to this I will eventually try to add this since I think these fonts will improve the web browsing experience.
I'm fine with it, but wouldn't it be simpler to use redhat's "liberation" fonts ? (same metrics so they work as drop-in replacement).
http://en.wikipedia.org/wiki/Liberation_fonts -- Adrien Destugues / PulkoMandy http://pulkomandy.ath.cx