The source who brought us the first confirmation for the AT&T Galaxy Note 2 is now telling us that the device has already been rooted. As seen in the screenshot above, the Galaxy Note 2 for AT&T is easily rootable. It does not have a locked down bootloader, unlike the Verizon version. The device is slated for a mid-November release on AT&T.
Keep in mind: this same source confirmed the existence of a Galaxy Note 2 for Verizon, US Cellular, T-Mobile, Sprint, and AT&T. The source also confirmed the exact branding (on the button) of the Verizon Galaxy Note 2. The track record here is perfect.