Over at http://make.wordpress.org/core/2013/11/11/open-sans-bundling-vs-linking/ the WordPress crowd is pondering the pros and cons of bundling a webfont (OpenSans) with the next version of WP.
The main question is: how to keep the filesize small enough, while meeting the multiple user needs regarding character sets. I'm sure they would be happy about some advice from the experts here :) Manuel