Qualcomm, the maker of all Windows Phone 7 "systems on a chip", have published a video demonstrating the thermal efficiency of its S4 Snapdragon processor. Starting off, the video shows a phone running on the S4 versus two unnamed devices from the - also unnamed - competition under an infrared camera, demonstrating the heat output of each device. Next up, surely done for "lols", the employee then demonstrate melting button on top of each phone - mercifully with a sheet of food wrap between! There's no mention of what the benchmark test was, and indeed whether each phone was running the same software - but we'll give them the benefit of the doubt.

Just don't try this at home!

Thanks to @tragicwaste