The first one enables you to write on a touchscreen in the same way that you would a piece of paper.
You clench your fist and pinch your thumb and index finger together like you’re holding a pen (see image above). Now, if you press your hand down to the tablet with this position, you can now write like you would on a piece of paper. Of course, it might be weird at first: you’ll probably hate the fact that you don’t have anything in your fingers, but we all thought the same thing about not having a keyboard. I’ll take the wait-and-see approach: if this does land itself on the iTablet, it’s definitely something I could see myself using. From the patent itself:
[0129] FIG. 15 is a proximity image of a right hand in a pen grip configuration. The thumb 201 and index fingertip 202 are pinched together as if they were holding a pen but in this case they are touching the surface instead. Actually the thumb and index finger appear the same here as in FIG. 14. However, the middle 203, ring 204, and pinky 205 fingers are curled under as if making a fist, so the knuckles from the top of the fingers actually touch the surface instead of the finger tips. The curling under of the knuckles actually places them behind the pinched thumb 201 and index fingertip 202 very close to the palm heels 206, 207. The knuckles also appear larger than the curled fingertips of FIG. 14 but the same size as the flattened fingertips in FIG. 13. These differences in size and arrangement will be measured by the pen grip detector 17 to distinguish this pen grip configuration from the closed and flattened hand configurations.