The same resolution problem is true for ebook devices! Higher resolution gives you the ability to display finer detail. So, the characters should be more defined and offer a better reading experience, and should cause less eye strain.
See, for example: http://www.maximumpc.com/article/home/kindle_vs_ipad_%E2%80%93_screen_techno logy_compared_375x_magnification http://www.bit-101.com/blog/?p=2722 The second reference should make it clear that comparing the quality of a Kindle 2 "pearl" display to newsprint is a pretty fair comparison. Real print books still have much better print quality than a Kindle or newsprint. Eye strain isn't simply a matter of resolution, its also a matter of technology, and a matter of *who* is doing the reading. The "screen door" effect of LCD displays drives me crazy, as it does many other readers. Other readers simply do not notice the "screen door" effect and it simply doesn't bother them.