News xMEMS' fan-on-a-chip cooling can reduce SSD temperatures by up to 20%

"On the other hand, the small size and quiet operation of xMEMS’ fan-on-a-chip would not add any significant heft to mobile phones, and they’re also virtually silent."

The mobile phones that I know have no open air vents. So the air would circulate internal of the phone, which I'm sure would not provide any significant improvement after a bit.
 
The mobile phones that I know have no open air vents. So the air would circulate internal of the phone, which I'm sure would not provide any significant improvement after a bit.
Cooling would ultimately be limited by the phone's shell, but the problem this solves is distributing heat away from a single hotspot, and without relying on any sort of heat pipe or vapor chamber that would add bulk and weight.

BTW, does anyone know if there are phone cases specifically designed to be heat-conductive?