Google will probably ship displays with higher than Apple Retina density, currently rumored at 2560x1600 pixels. We should make sure that we ship graphics for this size and that will properly switch to showing these graphics in that environment. I'm not sure what else would need to be done.
We have a set of XHDPI graphics we've made already -- there is a set for phones, and a set for tablets -- that should cover us for super high density displays. So unless Android announces a new XXXHDPI resolution, we should be covered for now :)
According to the article these would be 300ppi.
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