Kotaku is informing us of GameStop 's little addition to the Mirror's Edge preorder page. Apparently the 360 and PS3 versions of Mirror's Edge are going to get a demo soon enough. There's a special note added near the bototm of the website saying: "Mirror's Edge Demo will be available for download November 6."
I would've taken it more seriously if it came from EA, but hey, it's Mirror's Edge. One can only hope.