MAD.NUG Managed DirectX Speech Slides and Demo

Few hours ago I gave my speech on MDX 9 and C#. I've talked about Managed DirectX from the beginning, dropping advanced contents (for a future intermediate speech) in benefit of a tutorial-like slideshow.
I think I've touched all the basics, and everyone should be able to do some basic things like loading and manipulating meshes, textures, materials, lights, movements, and DirectInput (at least the keyboard which I used for the demo). Anyway, here you are the slides and demo code (in spanish), and feel free to drop your comments about them.