pad sensor of pressure

Other Hardware Sensors
1

i want a sensor pad A4 paper format that can recognize the touch pressure as in an ipad or touch screen lcd.
Where can i find it?

2

You could use 4 sensors in the corners and calculate the pressure point.

Or a matrix, like this, http://www.instructables.com/id/rSkin-Open-Source-Robot-Skin/step1/Pressure-Sensor-Matrix-an-overview/

There are also foot pressure measuring devices. They have a matrix of pressure sensors to get an analog value of the force/pressure at each point.

I found a few interesting things:

http://www.papierlogik.com/technology

3

I'm sorry but it's not what i'm searching for. Any simple matrix sensor of pressure?

4

Something like this maybe. Not sure how easy it is to interface to arduino though.