I see your point. The only two reasons that i could think that they would include airport instead of the centrino bundle is that they still want to be different than regular pc's, and they want as little confusion so the consumer still believes whole heartily that the airport express/extreme still works. those are the only two. and i think soon, they will switch to centrino.
just my opinion.
EDIT: also, progx, your sig is too long and if you don't change it soon, they will delete it all. 6 lines max. yours is 7.