For vegetation you might want to team up with the Skatter plugin (Lindale).
Again, it would be neat if you could team up with the Twilight Render team. Chris and Fletch are excellent guys. Your product is looking pretty darn good and they were trying to come up with an updated version of TR but are stepping aside so your team and theirs might be able to combine for a superior product.
At some time in the future it would be neat if a render product could publish your renders on a format that would allow them in full 3D format so that viewers could see them in full 3D (rotate, zoom, and navigate). 😄