Bgui and Video Texture

Does anyone know if there’s a way to use Bgui in conjunction with the Video Texture module? I’m curious if they work together either way.
For example, rending Bgui to a texture, and then mapping it to a flat plane, giving us Doom 3 style in-game computer interfaces.
Or, rendering a bird’s-eye-view of the scene, and using Bgui to display that render as a mini-map.
Has anybody experimented using the two together?