Ledunia is a wifi-enabled development board, based on the ESP8266 technology, including a full TCP/IP stack, which you can use for rapid prototyping any IoT application you can think of. Made in Germany.

Some facts: Real 32 MB Memory, 160 MHz CPU, Plug&Play and full Arudino IDE compatibility. WiFi and external U.FL connector, 4 Neopixel LEDs. 2×10 analog and I/Os for I2C, SPI, PWM and more.