How do icons start looking on screens with this high a DPI?

[AussieHusky]

I'm curious how launcher icons start to look at screen resolutions as high as the Sony Z (443PPI), the current android standards list extra high density screen icons at 320PPI (http://developer.android.com/guide/practices/ui_guidelines/icon_design_launcher.html) a long way off what we're now getting on the new crop of 5" 1080p phones.

 

[Ambroos]

Android supports XXHDPI too, which has a baseline density very close to the Xperia Z's 443 PPI.

Icons will mostly be upscaled. There are some apps that already have XXHDPI icons since the Nexus 10 uses those icons, but for others and for in-app graphics you'll probably just get XHDPI graphics upscaled. You won't notice the difference. The main quality increase of 443 PPI can be found in text rendering.