For one of the first times ever, I loaded up Youtube on the Pre. However halfway through the video, i "minimized" it and put my phone away. An hour later i pulled my phone out of my pocket and it was warm as if it the processor had been running hard since I'd minimized the application. As soon as I'd thrown away the card, it began to cool off again, however half my battery had been used.

Should the youtube app be burning up the processor when it's minimized and the video paused?