Here's a small screenshot for the weekend, showing another feature I'm planning for the next release of
Irrlicht:
It's nothing special, just the ability to render 2D stuff into textures. The consequence is that you will be also able to render the 2D GUI into a texture and draw this again in 3D space for example. You can do some funny things with this, here's a small program I've written using this feature, a UML class diagram in 3D :)
I have not seen this feature in any commercial game or app. yet.