Since I'm going to be running my own Humanspace Empires game at GaryCon, I've created my own handy, dandy GM screen. I made this by taping a pair of 9x12" Elmer's Bi-Fold Foam Boards together at the middle and printing out the relevant tables along with various pieces of art work and pasting them to the boards.
The Front View
The Rear View
Why spend $30 for one of those vinyl pocket GM screens that fall apart after a few months when you can do the same for less than $10?