My OQO kept falling down when I tried to use the executive case as a stand, what's your secret? I have to be doing something wrong. I wonder if it's because I use the double capacity battery. Do you still use the mouse when you're using the case as a stand?

I think it depends on the surface you are trying to rest the stand on. Mine's ok but I don't use it with the double capacity battery, nor with a mouse. I only stand it up when I want to read something on the screen while freeing up my hands.
I use a Nokia DT-13 mobile phone stand....
Nice design. I like how it will also raise the entire OQO. Just wished that it wasn't so costly.