The Dobot is an open-source robotic arm based on Arduino. It's easy to use, easy to program, and features various real-world controls.
The relaunched Atmegatron and its little brother the miniAtmegatron are 8-bit chip-tune synthesisers based on the Arduino.
The O Watch is a 3D-printable smartwatch designed by an 8-year-old maker, sporting a colour OLED screen, and a bunch of sensors.
The LightBlue Blue+ is a great little board, sporting Bluetooth, a battery, an accelerometer and a temperature sensor.
Oak is a new board by DigiStump. Compatible with Arduino, it features in-built WiFi and a tiny size, perfect for embedded projects.
The Spark Electron is a great little board, that has mobile cell connectivity, and includes a SIM card a bargain data package.
Ringo is a cute little palm-sized robot that resembles a bug. It features all the right components for your first robotics project.
The Qduino Mini is a small and light embedded Arduino compatible board, with a battery charger unit, allowing portable, rechargeable project.
The Arduberry is a shield for the Raspberry Pi, with an Arduino Atmega 328 embedded to allow you to use Arduino shields with your Pi.
Rex is like a love-child of the Arduino and the Raspberry Pi. Sporting some impressive specs, the Rex is a great brain for your next robot.
Bringing GPS to a board the size of an Arduino Mini, the Navspark looks like a great little board for geo-location based projects