I loved the screen of the OLPC XO laptop. I know we're really pushing for high resolution/Retina displays, but when it comes to laptop and mobile screens, usability in portable/mobile situations is desirable.
So funny that you mention this as I just today busted out my OLPC (first gen from the original G1G1) to do some hacking by the pool. It's still such a solid lil laptop, and the tiny keyboard is a small price to pay for such a beautiful screen in direct sunlight.
I'd take an underpowered laptop with a screen like that over a MBP retina any day.
The same people that designed the OLPC screen started up a company called Pixel Qi. I bought one of their screens and stuck in a Samsung netbook - it's pure heaven in sunlight.
I'd take an underpowered laptop with a screen like that over a MBP retina any day.