I\'m able to embed and style a font-face in a webpage to view on Android and iPhone, and it works fine. However, it will not render on Windows Phone 7.5.
I\'ve trie
typeface.js works with it. Just tested it a few moments ago because I need to do the same thing. It uses canvas and vector drawings. http://typeface.neocracy.org/
Whenever I need custom fonts I visit http://www.fontsquirrel.com/
It's an awesome site that lets you generate font-kits out of a .ttf file including a full CSS declaration with needed hacks for browser compatibility.
I don't know if it works on Win 7 Mobile, but I think it's worth a try
According to this blog post it's one of the "17 differences" between IE9 and IE9 on WP7.
And here's the MSDN article which officially confirms it.
I was successful in using Cufón to display custom fonts on IE in WP 7.5. Typeface.js did NOT work.