[rchaud]

It's plenty versatile. Not everything needs to be phone-friendly. Phone screens weren't designed for reading PDF-size documents. Even so, options exist to reflow the text, view in landscape or pan and zoom.

[broscillator]

There is one device which fits PDFs well, an ipad. It can be fairly awkward on laptops and deskptops as well.

> view in landscape or pan and zoom.

This is awkward, that's the issue I mentioned above, how annoying is to have to do that if you're reading for a 30-60 minute session.