By the way, if it were not for the fact that the AWK/OW combo fits into my Waterfield Design "Travel Express" bag/case (which I use for professional meetings) while the Msoft keyboard does not, I would probably have stuck with the Microsoft keyboard. I've had it for a couple of years, put a couple of hundred thousand miles of travel on it, and it works flawlessly. Though it has a plastic housing (compared to the AWK's classy aluminum), it is extremely durable and the key action is actually a bit better than the Apple keyboard. Furthermore, although it's a bit wider than the AWK, it's also thinner so packing in a bag is actually a bit easier if you have the width to accommodate it. (Altogther it's about 3 inches wider than the AWK.)
All in all, even recognizing that the Apple Wireless Keyboard is an excellent product, I'd say that dollar for dollar the Microsoft Keyboard is a better value.