AliveCor iPhone based ECG

This device (http://alivecor.com) looks like any case that you'd snap onto an iPhone, but it's got 2 stainless steel sensor plates on the back. To capture ECG you just put his/her left and right thumbs on the left and right plates (or place the whole device on the chest) and you get an instant clean ECG stream.

Check out http://alivecor.com/video.htm for demos from the inventor.

It's still awaiting FDA clearance.