For folks on AT&T who were hoping to use their Samsung Galaxy Note 2 with the Galaxy Gear smartwatch, your wish has been granted. An Android 4.3 OTA update has started rolling out that not only offers the newer features of Jelly Bean, it also includes support for the Galaxy Gear. Here's a quick changelog with the details,

Samsung Galaxy Gear compatibility
Additional Premium Suite Features:
  • PEN.UP
  • Group Play 2.5
  • Multi-Window (Note 3 Version)
  • Camera Shot & Sound
  • Group Messaging
  • Samsung Link (Preload)
  • New Easy Mode
  • Samsung Apps
Sound off when you start getting your rollout.

Source: Samsung