[ZenJosh]

I think you'd be right on that one, Exec's iOS interface font is Proxima Nova and I used a bit of a dodgy @font-face generator since I don't have a typekit membership

[nathos]

Keep in mind that embedding may not be allowed by your font license. An officially-licensed copy will come with the appropriate files (that are well hinted): http://www.fontspring.com/fonts/mark-simonson-studio/proxima...