At just about an inch longer, this laptop sytle keyboard is an ideal bluetooth companion for the iPad, which is why I bought it. If you prefer, there's a keyboard with a built-in dock available, but that assumes you want the iPad at the angle the dock insists, which isn't necessarily the case. This one also makes a great extension keyboard for a laptop, for example if you close your laptop and plug it into a big monitor, or for a presentation. However, you might be better off purchasing the older, full sized Apple Wireless Keyboard - Keyboard - wireless - Bluetooth - English
, which has the numeric keypad, full set of navigation keys and the delete button, if it's mainly for laptop use.
I didn't much like the look of the keys on this board until I actually tried it. They looked more like Scrabble tiles, and I preferred the typewriter style keys with curved tops found on MacBook Pros and full sized keyboards. However, I was pleasantly surprised by the excellent feel -- as good as the legendary old Northgate keyboards -- and find myself rattling away at my usual pace without any adjustment necessary.
On the first generation of this style of keyboard, battery life was appalling. Apple has addressed this, and, with fewer batteries required, we now get the kind of extensive life the old big white bluetooth keyboards gave us.
If you want a keyboard for the iPad (or iPhone, I understand) which you also want to use with a laptop, then this is the best one to go for. Otherwise, you might consider the dedicated iPad keyboard, as this more general model has functions such as CD eject which you won't be needing.
By the way, this review was typed on the keyboard, on an iPad, just so you know it works.