Today I've tested RMBP for some good time in store. Man, I love this machine!!!! I absolutely don't care if ram is soldered to it, I'm gonna get 16gb anyway, and I'm not planning to use it for the next 10 years, so low repair-ability is not an issue for me. And the screen is AMAZING! What a nice color gamma and sharpness! Yes, this is the best looking screen so far! BUT...... When scrolling in safari, what's that???? Everything jumps!!! I mean, if you have some text to read and you have to scroll down, you may loose the spot where you reading because it's not smooth at all! I literally lost the place where I was in a text because of it. I was shocked to experience it. I read in many threads about this problem, and thought it's an exaggeration. But unfortunately NO, it is real...and I'm not liking it at all. For instant comparison I went to older MBP that was in store and opened exact same page with text, and no it's not the same, glides like a butter! Man, how could that be possible, with that powerful processor and being latest technology? I mean it's jumping, not scrolling. I hope that it will be fixed with ML!!!! Please Apple!!!! I really want that new computer and I really love it. Believe me, after looking at retina screen you don't want to look at any non-retina!!!! The difference is huge in how nice and crisp everything looks, it's A whole new experience!!! And I really don't care about a slight lag when opening full screen and back, it's fine, yes not as smooth as older but nothing wrong with that. But for reading a text it is not ok, that jumpiness is not normal at all.... You guys think really ML is a solution? Retina craves for ML???