There was a rumor about a high density display similar to the iPhones with more than 300ppi. That would be the best and most important improvement, since OSX has to be adjusted heavily. I dont get it that we still use displays with 100-130 ppi like 10 years ago.
Is that practical, though? My eyes start to hurt from a 1680x1050 15.4 inch display, and I simply can't imagine working with a Full HD screen (maybe just for photo/video, but not for everyday work), unless it's 17+ inches in size...
