IE wins again...
@font-face Performance Advice
My first piece of advice is to avoid using @font-face unless it’s
critical to the page.
The primary reason for this advice is that font files block
rendering of the entire page in IE until they’re done downloading.
Stylesheets also have this problem. But stylesheets provide styling
for all aspects of the entire page, whereas font files only add one
thing - a custom font.
NOT
[High Performance Web Sites :: @font-face and performance](http://www.stevesouders.com/blog/2009/10/13/font-face-and-performance/
)