I think this one uses true Global Illumination ; which is a technique for realistic diffuse lighting. Killzone PS3 is rumoured to use it as well, altough i didn\'t expext GI to be used already since it a pretty heavy feat.
I saw a short feature on Wardevil\'s engine some time ago which mentions GI, but it was way too short and it didn\'t explain stuff like that, indepth.