Nobody cares about the proprietary driver. It worked with Karmic Koala or something, and with pretty much nothing else since then. EMGD was also in some ways worse than the OSS driver we have now. It had some rudimentary 3D acceleration, yes, but I would doubt its abilities of modesetting, backlight control, suspend and 2D acceleration, all of which run flawlessly with the OSS driver. So you might as well imagine a proprietary driver never existed.