It’s been around for a while. As off today also fea­tured on the Spiekerblog: proper type­faces instead of sys­tem fonts.

Copy is set in Espi Slab Reg­u­lar, Head­lines in Espi Sans Bold, Twit­ter Feeds in Espi Sans Reg­u­lar and Bold. Espi is Edenspiekermann’s exclu­sive ver­sion of FF Unit and FF Unit Slab. Done with Type­kit.

Mar­cus Scheller hacked it all together.

You can also see real type in action on the Eden­spiek­er­mann site.