The article by Matt Liebl from October 4th, 2013 is accompanied by a video interview with Quantic Dream's co-CEO Guillaume de Fondaumiere.
Both have a heavy cinematic approach to emotionally-driven narrative; both have fairly simplistic control schemes; and both feature cutting-edge performance capturing and deep character development. But despite their core similarities, Beyond: Two Souls is not merely a clone of Heavy Rain.
Full article here.