it is odd, I thought it was just me too
It really did feel the same as new glasses, strained eyes, achy, a bit dizzy even, very odd feeling. It did go away pretty quickly though and now is fine, even when I switch back to my old Sonys.....
wonder if I'll get it again when I get my 350 and 650's? I presumed I wouldnt as Im used to the kindle 3 which has the same screen, but it does have a more bold font than the Sonys so maybe I will.......just have to wait a couple of weeks for Waterstones to get the pink 350 in and till Xmas for my 650 !!