I would like to add a feature request: the built-in lightmapper. I think lightmapping is really great feature, and I see many engines offer built-in lightmapping tools (see irrlicht, crystal space, leadwerks). In my opinion this feature could be very handy.
Another thing. Water is something we have a lot around us, as well as in games. It would be great to have a built-in water in Panda, what do you think?