They are now shipping a Rev C board that has updated docs to cover:
- Upgraded 3.3 V regulator from 400 mA to 1 A.
Changed FTDI chip from FT232RL to FT231X.
Changed LED colors, see LED Status Indicators,
USB Mini B connector style changed and moved flush with edge of PCB,
PCB resized slightly, to accommodate XBee WiFi modules.
Note to admin: the Adafruit product page links to the older v1.0 documentation