Reviewers tend to dwell on the pixel density without mentioning the other things I want to know about the display: the color gamut, contrast, color accuracy, etc. This article mentions that the screen is "accurate," but it's a mystery what they mean by that or why they think so. One usually needs to wait for measurements reported in anandtech.com before one knows how a display actually performs.
The hardware is so good in this case, I think it's far more useful to install ubuntu or windows 8 on this computer instead.
I'm not surprised that video playback is slow since native access to file is probably not perfected in the website environment that Chrome OS probably uses.
This notebook will feature a lot in stock photography and advertising - no more need to photoshop out the apple logo on the notebook lid.