Fitness people love to make us feel guilty as they jog past the car, sneering as they watch us eat six double downs in one go. It's those people who will be happy that Motorola's Motoactv is getting a firmware update promising better battery life and power-saving settings -- including a marathon mode that'll give you eight hours of accompanied running. You'll also find additional clock faces and the ability to measure your heart rate even when stationary. You know, with their clear skin and no body fat, maybe they've got the right idea and we should give some serious consideration to c
