Apple Keyboard: How good it really is?

Starting with the wired version, it looks sleek, has faster USB ports, it is easy to clean, more comfortable to use and it is indeed super-extra-slim. Gone are the raised keys of the old; in their place come flat keys that look and feel almost like those on a MacBook. the weight required to press them is now a fraction of what it used to be. In practice, this means faster typing and less wear on the finger joints.
A thing to keep in mind is: if you are going to replace your keyboard but not your Mac, remember to update your keyboard driver (Apple keyboard update 1.0) to ensure the new keys and layout are fully supported and the keyboard only works with OS X 10.4.10 and above.
Apple has added three new keys: Dashboard, Expose and track-browsing keys for playing, pausing, rewinding and fast forwarding video and audio.

with the same capabilities, there is the wireless version. This works with bluetooth. Because it is wireless, it does not have USB ports. (See below)