My phone is running UD 8.0. It is over clocked using sp3 kernal it alternates between 1000 at max and 125 on demand. My phone will shutdown whether it is using copilot or google maps. I know the copilot has maps installed on the sd card so it should get that hot i think. It doesnt mater where i set the overclocking at even if i set it at 600 max it still overheats when I use the gps for a long time.