Although I love just about everything in OS X, I hate Apple keyboards. I have been using Macs and Apple keyboards/mice/peripherals for a couple of years now (daily and for prolonged use), and after speaking with several co-workers and my peers, we've come to the following conclusions. The keys on Apple keyboards are stiff and sticky to push down. They require a lot more effort than keyboards made from PC vendors to type down on. This isn't a gross over generalization, but I have never found any keyboard harder to type on than the new white Apple keyboards. I find my typing speed and comfort on every other keyboard I have knocks the socks off my Apple keyboard. While if you're not using your Mac all the time, this isn't a problem, but if you do a lot on your Mac, this does become a large problem. The most comfortable Apple keyboards are the Powerbook and iBook keyboards... err Macbook Pro and I'd guess Macbook keyboards as well.