According to this Facebook post by Tony Bridge, Fujifilm will release a new firmware update for the X-Pro 1 camera on September 5th, 2012. The key updates are:
1. In low-light condition, the X-Pro1 will be much faster in Auto Focus mode.
2. The speed of the image coming into focus when turning the focus ring has been vastly improved.
3. At maximum speed the X-Pro1 can now write to SD memory card twice as fast as before.
