[ebbv]

Is this really news to anyone? Of course it's hard to estimate, the same goes for MPG/miles until empty in a petrol or diesel car.

That doesn't make the measurement of current estimate useless. It's still a useful tool. Users understand if they close windows in their browsers, or shut down Battlefield 958 that will prolong their battery life and that if they turn up screen brightness that will cost them battery life.

Apple chose the lazy way out of this problem. The estimate was not any more inaccurate than it ever was in the past (at least I haven't seen any evidence that it was), and user's aren't any dumber. Apple just didn't like the press and made a stupid change to try to correct that issue. Lame.