While we know the human body is capable of generating electricity, we never quite thought of it as a data transmission channel like this Microsoft patent application suggests. According to the document, the folks up in Redmond would like to be able to transfer information from one electronic device to another with a simple touch, as seen in the image above. It all sounds a little freaky, but the filing goes on to suggest a few practical uses. Instead of swiping a credit card or showing ID, you could use your own flesh to authenticate the purchase of goods or services. Another example is the ability to share contact information with someone just by shaking his or her hand, so long as he or she was also wearing a similar electronic device. While we hesitate to endorse such a technology, at least it's less invasive than embedding circuitry in our wrists. If you feel like plumbing the depths of this patent further, click on the source for more on what the software giant has in mind for the future.