HD is a PITA to swap.
Hinge doesn't go back further than about 120 degrees. I constantly find myself in a similar situation to this:
http://www.youtube.com/watch?v=2pQQWB3uZIs
I find myself constantly trying to hit the right shift key to type a capital letter, accidentally hitting the up arrow key and deleting a line of text.
Low resolution screen for a high-end 15" notebook
Internal speakers are not loud enough for use in a IT environment.
Sleep light is WAY too bright during the middle of the night.
The fact that the ports are all on the sides instead of the back is a minor irritation. On one hand, it's very handy with the way my laptop table at home is arranged. On the other, when it's sitting on my desk at work the cords running everywhere irritate the piss out of me. I think I'd prefer most of the ports in the back with a couple of usb ports on the side and possibly the power connector. It would be nice if the macbook had two power connectors, one in the back and one in the front. Of course currently the hinge design limits this possibility but the hinge design is one of my complaints anyways.
The magnetic catches are a great idea and add to the sleekness when the laptop is open. However, it causes un necessary warping on the outer edges of the screen because of the tension. This could be fixed by going with a all magnetic latch like the macbook or by adding two extra latches on the outer sides of the pro.
more usb ports. Seriously. I paid $900 for my older dell and it has 4. Friend paid $1300 for his dell and it has 6. Paid $600 recently for the wifes new HP and it has 3. Two? You're serious? $2000 notebook and two USB ports? It needs 4 minimum. Prefer to keep one on the right side at least for mouse but the others can go on the opposite side or something.
Card reader. I mentioned the other computers in the paragraph above so I won't recap. All of those computers can at least read sd cards. The hp can do memory sticks. Again, a $2000 notebook and no memory card reader? I was forced to buy an express card reader (a belkin, btw.. don't buy it, it sucks).
Aluminum case scratches easily. Bought a plastic cover for it. Although the plastic macbooks aren't any better.
Loves: Backlit keyboard, LED-lit screen, battery life, magsafe connector, t7500, 8600m, 2GB (but big whoop the $600 hp came with 2GB of RAM), firewire ports (hp and dells have these too though).
Wouldn't trade it for anything right now but will definitely trade up in january if the refresh fixes some of these problems.