Working on more, but nothing exists off-the-shelf for >300ppi eink. No one has ever done eink under magnification like this so higher density screens don't exist (yet). We made a custom bitmap font system and font to squeeze every bit of optimization out of this screen that we can. Text rendering isn't pristine at this low res but it's good enough to not hinder reading. https://x.com/johnboiles/status/1715136868290081104?s=20
Probably not, it's statically projecting (with fancy optics) an eink page out in front of your face. There's no 3d tracking / fast refresh or anything like that. Imagine something that mounts an ebook a meter out from your face, but in a small package.