Both the Bold 9900 (pictured below) and Torch 9860 will be released by AT&T on November 6, coming with 4G (HSPA+) support, and running the latest BlackBerry 7 OS. The 9900 will cost $199.99 on contract, while the 9860 - AT&T's first full-touch BlackBerry - is going to be available for $99.99 (also on contract).
As for the Curve 9360, this won't support AT&T's HSPA+ network. It's going to cost only $29.99 on contract starting November 20.
All in all, November 6 is going to be a big day for AT&T, as it will launch the two BlackBerries mentioned above, two new Windows Phone Mango handsets (Samsung Focus S and Samsung Focus Flash), and its first two LTE smartphones: the Android-based Samsung Galaxy S II Skyrocket and the HTC Vivid.
Given not only the popularity of Android, but also the promise of faster data speeds (LTE is true 4G compared to HSPA+), I'm pretty sure the Galaxy S II Skyrocket and the HTC Vivid will steal the show that day.