Mac users who want an elegant dock in which to place their MacBook Pro while at home should definitely consider the improved second generation BookArc from Twelve South. It's brushed aluminum finish compliments a desk that shares other (currently) modern Apple equipment like the Cinema Display, Wireless Keyboard, Magic Mouse or Magic Trackpad. Sure, you can just put your laptop on the desk and it works nearly as effectively, but aesthetically the Arc makes the whole set-up look better, and the ergonomics of the raised platform and cable management is also an improvement. It also positions the MPB's CD/DVD tray outlet front and center and raised up, making for easier disc removal and insertion. Is all that worth the price of admission? Well, you have to determine that for yourself.
Though the BookArc only touts compatibility with 13"-17" MacBook Pros, MacBooks and PowerBook G4s, it can also handle other laptops that are about 1" in width and have a fairly flat case. I can personally vouch that my 13" HP Pavilion DM3-1130US fits, though it tilts slightly to the right and isn't as stable. So it's possible use it with other laptops, though you really need to test it for yourself to be sure that it will work with yours. MacBook Air owners need to get the BookArc designed specifically for the Air.
Overall, I really like the Arc's design and it's sturdy construction. It's very stable and the likelihood of tipping over your laptop accidentally is pretty slim, though it is possible if you really whack it. The underneath cable manager is a nice touch, keeping the power, monitor and other cables in one spot when you unplug your device. It is an elegant and well designed desktop accessory to compliment a MacBook based set-up, and it can even handle some PC laptops as well.