Reduce input width of touch screen

[ApB]

Kind of like a duplicate of this:

Preventing -or rather taking account for- accidental touches on the screen

While not Design per se its an interaction issue so i believe this is the place. The problem is that the UI works with only first touch on the screen and this creates issues (mainly with long reaches etc). To explain -simply- whats wrong: Unlock your phone and put it on a flat surface Touch the screen with one finger and then use a finger of the other hand to touch the screen. Keep both on the screen. Move the second finger. Nothing happens. Move the first finger. The UI reacts. Obviously th…