Cell phones, so-called "smartphones," and handheld computers keep getting smaller and smaller. In fact, even desktop, laptop, and "netbook" computers also are shrinking in size. One of the biggest challenges is how to enter data as devices become too small to support a standard keyboard.
Chris Harrison has developed a possible solution for the tiny computers of tomorrow. Skinput is a method in which your skin can become a touch screen device for your computer or MP3 music player.
Details may be found at http://www.gizmag.com/skinput-body-touchscreen-keypad/14408/
I can imagine a conversation at a future genealogy conference: "Let me check my genealogy database. First, let me roll up my sleeve..."