I also have to agree that what is shown in the renders are not showing anything that can not be done in bryce 4. I was looking for a hint of radiosity, or some other advanced algorythm. If all it will do is let you create trees, Well there are a bunch of SW oth there that can generate trees. The rest so far exhibits no real improvements. at most they may have improved the ability of applying textures but as far as images that can be easily distinguished from the current version of bryce, no cigar. I noticed that it still makes triangulsr spiky terrains as noticable on the mountain and cliff faces.