If you are talking about additional font for the Web Page viewer, we would need more information. Perhaps, this is resolved by the addition of Chromium browser (check this idea: http://support.yodeck.com/forums/301815-general/suggestions/13794672-ability-to-render-more-advanced-web-content)
If you are talking about the RSS Ticker, we plan to add support for a Unicode font, so that all characters can be rendered (Chinese being the most problematic one right now).
Please provide more feedback on this.
Luke Levesque commented
I have some web pages I'm displaying and the content is using the 'Tahoma' font. Yodeck seems to revert it back to a standard font, as if it can't display the content. I am using the chromium browser.