We've gotten our first prototypes back and they are working well.
There's a complete writeup on my blog:
http://baldwisdom.com/introducing-raspb ... a-la-mode/
Flexible power. Can be powered directly from the Pi, standalone with a battery or wall-wart, or USB power. This is important if your shield takes more power than the Pi can provide or if you want to undock it for standalone operation.
Programmable via the Pi’s UART on the GPIO pins, or an FTDI USB-Serial adapter or ISP.
Header for connecting Fastrax UP501 GPS.
DS3234 Real time Clock. The Pi doesn’t have it’s own battery backed RTC. You can set a program in the AlaMode to report the time to the Pi via serial or I2C
Micro-SD card slot. Useful for datalogging, and big-memory for your Arduino applications
Row of Servo Headers connected to the PWM pins with a configurable power and ground rail
