Just a note on fonts and licenses --
Google's been helping to make lots of high quality fonts available under open licenses, and ships these with products like Chrome OS. Their font directory repository is here:
https://code.google.com/p/googlefontdirectory/
And they have nice web UI for comparing fonts here:
https://www.google.com/webfonts
I don't think any of the uses we have right now outside i18n merit using actual webfonts (for which the i18n team developed the WebFonts extension), but it might be a nice nod to open source font development to specify openly licensed fonts as preferred in cases where we're currently pointing to proprietary fonts like the Microsoft core fonts.
Cheers, Erik