There is also an extensive discussion in the American Airlines section of Flyertalk because Admirals Clubs only recently started to accept the Platinum card for admission.
... replete with a completely-unwarranted amount of vitriol toward us Plats and Cents.
Bottom line is I've added AA to my list of preferred airlines because of this perk and have spent $$ there that would have normally gone to SkyTeam. (What this means is the AC members b!tching and moaning about us can smooch my patootie.)