A reader asked about applying multiple textures on the cube, so I’ve created a new sample project and article to show one way it can be done.
Researching alternatives also turned up some neat stuff we can try with cube mapping, which I’m working with right now for my next sample project and article. I’m going to put our cube in a larger cube that will employ cube mapping to make an environment around us.
I found a link on Wikipedia to a set of awesome cube maps at www.humus.name. I’m going to use one of those to make a decent sample project for cube mapping under OpenGL ES 2.0 on the iPhone. I’ll post more information once I’ve completed the new project.