Anyone have a look at the Unity 3d features? Some of them are a bit puzzling. * packed mesh formats What do they mean by that, interleaving, or triangle group re-ordering? ... or something else? * Occlusion Culling The MBX chip has tiled based rendering. Wouldn't this make occlusion culling redundant? * Combiner based shaders/Shader Emulation I assume they are talking about bump-maps.(MBX has only one shader)