Icon fonts just seem to like such a hack to me in a world where SVG exists. Is the entire idea behind using them just that IE 7/8 doesn't have SVG support? How did lack of SVG support even happen? SVG seems like something any modern browser should have had for years.
Android also lacked SVG support until 3.2. The justification I read was that they deliberately disabled it from their webkit build to save 1MB in the compiled binary. Sad, especially since pre-ICS phones are by far the most prevalent.
I would love to use SVG, but support just isn't robust enough. Hard to deal with hover/active states too. Icon fonts are one request and easy to style with CSS color and text-shadow (even simulating glows). I just wish there was an easy way to generate a small font set from a the handful of vector elements I need for a given website (custom elements, that is, not using a service like Pictos).
It’s not usually the high-dpi devices that you’d be adding hints for. The point is that anything that is going to replace today’s pixel-perfect bitmap graphics still has to look pixel-perfect when rendered on lower-dpi devices, which is going to remain by far the majority of visitors to most sites for a while yet.
