[ned]

I'm afraid this boat has long sailed. The "pixel" term is in the CSS 2.1 Spec. It's set in stone.

Personally I've made peace with it. I say either "CSS pixels" or "device pixels", depending on what I want to express.

And although the high resolution screens have only made the difference between the two more visible, it was there since Opera featured full pages zoom many years ago, and when Mobile Safari introduced the "viewport" meta-tag in 2007.

[JoshTriplett]

Unfortunately, redefining "px" from its original meaning as "device pixels" to a new meaning of "probably one 96th of an inch except on mobile browsers where ..." means that CSS no longer has any way to express "device pixels".

[bzbarsky]

What are the use cases for expressing "device pixels" in a world of widely varying (both across devices and in time) device pixel densities?