Nice catch! Yeah, 3 percentage points in, what, five minuets? It's not an iPhone 5, of course, which should have stronger battery. Still it sounds like we should be plugging these babies in when we're using these super-rendered, 3D modeled-on-the-fly, automated, voice directed directions from our post-pc, hand-held devices which only a few years ago would could classify as supercomputers... But perhaps that goes without saying.