http://veesus.com/
Point Clouds For Rhino new version and Professional version available.
Both include and more:
Standard:
- Massive Point Cloud Sizes
- Colour and Intensity Processing Visual Enhancements
- Alignment
- Origin
- Slices
- Clipping
- Programmable Shader
Professional:
- Copy Point Cloud Selections
- Delete Point Cloud Selections
- Plane Analysis
- Plane Through Points
- Renderer