[dspillett]

Ish. It is the buzzword for "the same design works on a vast range of screen sizes and orientations".

The fact that things rearrange dynamically as you resize your window on a desktop box is not the main target, the target is a design working equally well on your desktop, your table in both landscape and portrait, your much smaller phone, and so forth, so the designer doesn't need to maintain multiple versions of the site/page/app.

[datashaman]

Coincidentally, 'ish' is the name of a useful viewport tester for responsive design. http://bradfrostweb.com/demo/ish/

[diminish]

In this particular case, could anyone explain how high pixel density and responsiveness would work together at the same time?