A few observations after a day w/ my new (stock) MBP: 1) The screen does not seem as bright as my previous "late 2008," and their doesn't appear to be as many usable lighting levels -- it goes from bright to dark fairly quickly. This is 100% subjective on my part, and I might be misremembering my late '08 even after parting ways with it only a few days ago. I remember my '08 absolutely blinding me at the high end. I have to keep this one near the high end or I will go blind. 2) The lighting seems to be more uneven -- the corners are slightly darker. It's also noticeable when you use the calibration tool. You can literally calibrate on part of the screen that would be out of sync with another part. I'm not a graphics geek so it doesn't bother me all that much. 3) The fan seems to always run (about 2000 rpms) but its just a whisper in a quiet room. It would be inaudible in a more public setting or other background noise. Big improvement from my Late '08 whose fans were almost always blaring full speed. 4) It runs colder than previous models. I've owned two other MBPs -- the original '06 and the late '08. Both of those got very warm on the top, esp. the upper left, and unbearable on the bottom. So far the bottom has only gotten warm and top is lukewarm at best. 5) The speed is noticeable in apps like PS3 and transcoding media files. Faaast. Boot speed may be faster, but I can't really feel it -- but the Corsair P128 SSD in my 13" MBP has spoiled me. 6) The new accelerated swiping is a nice touch. I got so use to it w/ the iPhone it felt like hard work to swipe to scroll on my MBP. 7) I'm in the process of calibrating the battery right now, but out of the box battery life is a huge disappointment. I'm doing good to get 4hrs on a full charge with only moderate use. Hopefully this will change once calibration is complete. I'll post an update tonight or tomorrow AM. 7.1) Finished calibrating the battery. I still don't get anything near what Apple claims unless I'm just web browsing. Playing a video from the HD at full brightness I get 3:30. At half brightness it goes up to 4:10. Photoshop at full brightness gets 4:30. Half brightness goes up to 5:00 and change. These were only brief tests -- so just going off what the computer is telling me at that point. I think I'll try and calibrate one more time tomorrow before I make a final conclusion on battery life. I was hoping for maybe 5hrs at full brightness and moderate disk access. Also FYI, my HD is a Seagate 7200.3, not the stock Apple drive.