What do you mean?
You can develop commercial games with it if you like to. Just look here:
http://www.neoaxisgroup.com/services.htmThe engine looks nice and is based on Ogre.
The only thing I am missing: lightmapping. Did you look at the demo? There are no lightmaps, everything is bright and clear. There are a few dynamic shadows but this is not enough to create realistic scenery.
Edit:
I found this at the roadmap of Neoaxis:
...
- Shadows for HeightmapTerrain and ShaderBase materials.
- Map Editor: Integrated lightmaps calculation utility (Global Illumination)
So I think light-maps are the next step and could lead to a very competitive engine then.