[freshyill]

It's still a hack. It's time to go with SVG instead.

Here's a good writeup of reasons to stop using silly icon fonts and start using SVG.

http://ianfeather.co.uk/ten-reasons-we-switched-from-an-icon...

[marcosdumay]

Does IE support SVG already?

[freshyill]

I've had a lot of success using SVGeezy for image replacement and Modernizr to help with background images.

http://benhowdle.im/svgeezy/

[icebraining]

IE9 and up do: http://caniuse.com/svg