So, for those of us who follow development of the latest and greatest GPU features with regard to gaming (OSX or Windows), PhysX is not news. PhysX is a feature compatible with nVidia GPUs that creates much more dynamic interactions with elements within a scene. In order to SEE these interactions, both the GPU and the game have to be written to take advantage of it. Here's a couple of short videos that demonstrate the effects it's capable of: http://www.youtube.com/watch?v=-x9B_4qBAkk http://www.youtube.com/watch?v=trq6B4anzjM http://www.youtube.com/watch?v=VafzR7JqO2I Now, three games that could benefit from PhysX that are Mac-native are Borderlands 2, Batman Arkham City, and Metro Last Light. This list of GPUs (pretty extensive, going at least to the 2012 iMacs and Macbook Pros) supports PhysX. For those who know (preferably in Mac game or driver development), what's the hurdles keeping this feature from being implemented?