Yes, it should work since it has the type IIIB form factor. I’m not sure why you’d want to get it at this point. The Intel 2915ABGs will be out pretty soon and should be priced fairly low once in the mainstream market.
Well, the advantage of the Intel 2915ABG is that it will be triple band and likely be a low power part like all of the “centrino” platform parts. While the original Atheros ABG card I recommended was good for its time, there are newer chipsets from Intel and Atheros that perform better, add new features, and use less power.