Another reason to turn off the touchscreen on the N8: I have often switched WiFi & 3G off by accident
subject says it all: Symbian is prone to accidental touch screen disabling of WiFi & 3G while moving. Touchscreen interfaces assume you will be using them while stationary. Not true :-) Especially for cameraphone picture taking you don't want inadvertent touch screen touches while moving!
(this blog post is aimed at the 3 people in the world who still use N8 as their main cameraphone :-))