in action on 2013.ampersandconf.com
Karmina is available from Fontdeck, Fonts.com, Fontshop, MyFonts, Typekit and YouWorkForThem.
Karmina Sans is available from Fontdeck, Fonts.com, Fontshop, MyFonts, Typekit and YouWorkForThem.
Found by @mikesten on 6 Jun 2013.