Here's the XB1s controller, which has a few changes done to her. It's still a CG layout, but they have ditched one of the board to board connectors and used a 16bit I2C IO Port Expander for most of the Digital functions now. That has the benefit of only needing 3 connections, instead of the 13 that it did before, so they can use just 1 connector. There is also a cable for an on board RF antenna that goes to the MCU/RF board.