Toshiba has introduced a 22-inch LCD that sports a 3840×2400 pixel resolution or I’d estimate about 220dpi. Nice! The bad news is they cost about $17,500 initially so this is clearly only for specialized applications, and I suspect you need a custom video card to drive the thing. Still, it makes me hopeful again that we will see high resolution come to the mainstream in a few years. I’ve seen some examples and its just hard to describe how much better computing is when the fonts and all the UI are rendered with so much more accuracy.