Unwired View spotted that Apple has patented a biometric recognition technology. The idea here is to replace passwords with cardiac sensors that can identify the person holding devices like the iPhone. It's just a patent though, it's unknown how reliable this could be.
When you hold an iPhone in your hand, cardiac sensors, integrated into the iPhone case, are able to monitor your heart rhythm, and identify the person holding the device.
And that’s about it. No passwords that can be glimpsed or guessed, fancy gesture movements on a touchscreen, that can be easily recognized. Just pick up an iPhone, and it already knows it’s you.
Pretty cool idea. Unfortunately, it’s only at a patent stage, and it’s implementation will depend a lot on availability of reliable enough sensors, and processing software, which may not be up to the task yet.