it's folky, but their audience is primarily from the indie rock crowd and their music has a lot of the sonic characteristics I (at least) associate with indie. So while I personally don't consider that stuff to be *quite* folk music when splitting hairs, most of their fanbase DOES consider them so. And the folk version of the academy has come to embrace that style as well, both as a natural evolution of the folk spectrum and an attempt to expand the aging/waning base of more classically defined 'folk.'

Over the past few years, the Philadelphia festival's had everyone from Son Volt to Iron & Wine to Decemberists. It's changed the tone of the Fest somewhat, but I can't be mad about it as I don't particularly mind any of those bands (and actually love much of SOn Volt's work).