landscapes aren't suported, I would like to add that feature some day, but now is not the time, detail textureing is easy to implement, but not when you have such a complex lighting method as specmapping, if we were to so much as drop glow map suport it would be easy (ignoring for a moment the lack of suport for multable uv coordanants).
when the new material system is implemented people will be able to pick and choose exactly how each surface of the model is rendered, until then there realy isn't much we can do we have effectively reached the limit of the hacked in name based texture loading will allow.