Unpopulated uFL Connector
The Raspberry Pi 3 has built-in Wi-Fi and Bluetooth. The standard antenna is a board mounted chip connector circled in red on the front side of the board below:
|Close-up of pad J13 and a uFL solder connector (not to the same scale)|
Touch Screen Connector
The rear picture above has a spot shown in yellow. This is opposite the HDMI connector on the front. It is not shown with any part soldered there above and on the Raspberry Pi 2. But the FCC testing picture of the rear shows a ribbon cable connector on the board.
|Leaked Raspberry Pi 3 FCC Testing Board with Populated Connector|
There is so much potential to this third generation board. Let me know if you have found things to do with it.