They moved to a chiclet style keyboard in the previous generation, removed the top row of keys, and have now inverted the function keys so they perform media functions first. In order to get an F4 you have to press Fn+F4. Ridiculous!
Also they have removed the physical buttons surrounding the trackpad. Previously, one of the nice things about the trackpoint was the ability to have your finger moving the trackpoint while your thumb took a rest on the middle button. Being able to feel the physical buttons you always knew exactly which button you were going to click. Now with the Apple style trackpad, you get no textual feedback at all.