I have NOT really tested this at all yet, but I'm excited about it, so I'm passing along my VERY preliminary report. At macbytes.com I found this software way to accelerate your graphics card... http://thomas.perrier.name/software/ATIcceleratorII.html which I thought was very cool, but when I was playing around with it, just for fun I DEcelerated the graphics card quite a bit (-64% gpu and -64% mem) until right before video glitches were apparent, and I noticed my remaining battery life counter in the menu kept creeping up extra minute by extra minute, and is continuing to do so as I speak! Could this really be true? Or is it just a reporting error? I don't know yet, but it seems plausible that it is a true effect. Try it and see for yourself! And report back if you have the same results.