Loaded Denim. I (too) am finding apps that are causing my phone to heat up when it never did with Developer Preview. I am also getting some tiles that flash and flicker. PerfectThumb clock being one of them. WP OS always seems to struggle with clock APPS, especially those that move, update or display the clock in a shape. I'll experiment and update! (I guess MS has to give us something to do since we don't the get the WM10 update on our ICONs yet.)