most of new cell phones and personal pocket pc like i pad and notes uses touch screen
all the device work from screen touching .
scintest make new feature in touch screen technology .its the sense
they add sense the touch screen , i mean when you put your nail its give you property of drawing as
example and if you use your knuckle it do another work .erasing what you draw.
and in other example with playing games ,with one hand touching you have several work
see the video below .its amazing technology