CES isn't just about incrementally thinner or faster hardware, you know. Some people like to bring legitimately innovative ideas to the show, such as this iPhonECG case, which does what its name suggests: it takes an ECG (electrocardiogram) reading of your heart's activity through a pair of electrodes and then communicates its findings to an iPhone 4 it can be attached to. We say it can be attached to an iPhone as communication is done wirelessly, so you'll probably be able to