This is a Arduino-compatible autopilot board designed by Chris Anderson and Jordi Muņoz of DIY Drones using the new ATMega328. This board was used to win the annual autonomous vehicle competition put on by SparkFun
The Arduino Leonardo is a microcontroller board based on the ATmega32u4 (in Documentation tab).
The Netduino 2 is an 32-bit open source electronics platform using the .NET Micro Framework with a rich development environment.
Netduino Plus 2 expands on the impressive 32-bit open source Netduino by adding ethernet connectivity and an SD card socket.
The Netduino mini is a breadboard-friendly of the impressive Netduino development platform that uses .NET micro framework.
The Arduino Ethernet is a microcontroller board based on the Arduino Uno, and incorporating a WizNet W5100 TCP/IP Embedded Ethernet Controller.
Nanode is an open source Arduino-like board that has in-built web connectivity. It is a low cost platform for creative development of web connected ideas.