BGR has acquired an internal AT&T memo that outlines the Windows Phone Mango 7.5 update. The memo adds yet another level of validation to the previous rumor of a September 27th update. Looks like the magic is going to happen tomorrow. Impressive that early adopters will also be among the first to see an official Mango update.
Good, as it should be.
I admit that I expected that early adopters would have to wait a few months after new Mango devices were released. Phone manufacturers and carriers would obviously prefer that people just buy a new phone (and contract), rather than extending the lifespan of one-year old devices for another 8+ months.