I reckon I'll stick with my CyBook for now.
I think the eink display is better in sunlight. I can whip it out and start reading any time, any where (e.g. waiting in a supermarket queue), it's more portable - I can read comfortably in bed or in the bath, and it has a better battery life.
"Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing has happened." - Winston Churchill