[TheAnimus]

>but the old Windows desktop has never supported high DPI displays, and I don't think it's about to.

Except it has. I've been using it like that for 7 years on my lounge TV which is scaled to 175%. On my old Z series for 3 years which had a high PPI screen before anyone else was pushing that way (colour rendition suffered a bit I felt).

The problem is lots of software doesn't play well, they use dodgy code, assume its always 96 dpi screen. Even VB devs given twips managed to mess it up with hardcoded assumptions all over the place.

However, all the main apps I use support it, if one doesn't well you can set that apps option indevidually.