how to exit developer mode on android 4.0 ice cream sandwich I have a Sony-Ericsson Xperia Arc S with android 4.0,
the dev mode was activated by mistake by a non tech person.
( so now every touch/drag draws a line, and on the top it shows x,y coordinates )

I can't find how to disable it
To Disable Developer mode goto settings-> developer{ } then there is a slider on  top of Developer options which you can on/off.