BTW it looks like most font sources for Liberation still have the obscure self-referring EULA in their binary fields left over from the commissioning from Ascender:
License URL: http://www.ascendercorp.com/liberation.html
License:
Use of this Liberation font software is subject to the license agreement
under which you accepted the Liberation font software.
And the embedding (fsType) is still set to Editable embedding (0x0008) which indicates that they may be embedded in documents, but must only be installed temporarily on the remote system.
Maybe the new Chrom*OS fonts: Arimo, Tinos, Cousine -recently commissioned from the same foundry under OFL - will provide a better alternative than Liberation for font compatibility: http://chromestory.com/2010/09/how-to-get-chrome-os-fonts... ?