http://arstechnica.com/security/2012...use-movements/

Now, before you guys get riled up, do remember that almost every browser allow such tracking. It's just that IE keeps JS running even while minimized, it seems. Also, I doubt touch devices are affected due to this affecting the mouse cursor, and the information is also meaningless without being able to know the screen contents (and thankfully IE will never support WebGL which can cause exactly this.)

Thoughts?