My experience is, after calibrating with Spyder, it looked "right". Also comparing to other apple displays ( macbook pro and iMac ) also calibrated with the same system ( Spyder ).
On the new notebook screems, I guess the biggest difference for me will be the fact the displays are LED backlit screens, since my current notebook ( white macbook ) came with the glossy finish, but it's a regular TFT notebook. On the current screen, after calibration on spyder, it looked normal, provided I positioned myself somewhere reflections didn't pose a threat. I didn't notice oversaturation or weird colors comparing my glossy macbook and a friend's matte macbook pro. But again, I'm on a white macbook with regular TFT screen. Regarding the glossy feature, I had no problems. Talking about the diference between glossy and matte finish alone. It also looked the same compared to the recent iMacs, also calibrated with Spyder. But I'm not 100% sure the new iMacs use the same screen technology. So, regarding the LED technology itself, no idea, but my guess is that the software will be able to provide a proper profile, as far as colors and brightness go.