This is the standard way of loading with @font-face, hacky fixes and all!!
src: url('BebasNeue-webfont.eot?#iefix') format('embedded-opentype'),
But remove SVG and you'll lose support for iOS < 5.0 almost completely
Can I Use has an excellent table for browser support generally another for EOT, another for WOFF, yet another for SVG and finally one more for TTF. I've inserted them below for clarity, and this should guide you on what to test, but bear in mind this will change quite rapidly.
Edit by wyu: I've compiled a table so you can view support side by side
@font-face browser support generally
EOT browser support
WOFF browser support
SVG browser support
TTF browser support