How does dissembling the new Unibody compare to the old style Apple portables? To begin with, way easier. Once the battery compartment is off, it’s just six screws beween you and the interior, and they’re all on the bottom of the case. Compare this to the plastic MacBook I took apart a few days ago (to replace the keyboard, actually supplied by iFixit), which requires screws of various sizes to be removed from all over – inside the battery compartment and three sides of the case – before you get the first whiff of circuit board.
After that, things are more normal. All the components are fixed to the top case, so while there are a lot of screws, their actual removal is pretty straightforward. Until you get to the keyboard, that is.
The old white MacBook has its keyboard and trackpad built into the upper case, and the whole lot can be easily replaced. With these new MacBooks, you can’t just swap out the new Unibody, so getting the keyboard off is tough. 15 minutes and 56 screws tough.