cf w8 possible touch screen???

hi there
i know i am obtrusively ?? but i am very interested in building in a touchscreen on my cf w8
is it possible?
has anyone experiences in doinig this?
are there any problems?do i need a special hardware on / or installed on my cf w8
or is it just buying a touchscrenn and build it in?
do i need a special adapter?
is the touchscreen able to be fingered touched or do i need a special touch pencil

sorry for my asks but i am longing to know this
if it is definatly not possible ok
but if...

cf w8 possible touch screen???