I think the arrow keys are the one thing I like least about Apple keyboards. They're great for saving space, but feel way too cramped because of that. It's too easy to accidentally hit the down key when you're going for the up.
It's an entirely subjective thing, of course, but I prefer keyboards where the arrow keys are as large as everything else.
That's a fair point, but I'm not suggesting other laptops get the up/down arrow keys wrong. It's the fact that every non-Apple laptop keyboard that I know of fails to leave empty space to the left/right of the up key. In the case of this mockup, the issue is that the left/right keys are each as big as the up/down keys combined. Most laptops from other companies put random keys to the left and right of the up arrow, IE, page up and down, or home and end. The issue with that is it makes it difficult to find the arrow keys by feel alone - you have to actually look down at the keys to make sure your fingers are on the proper ones.