Minimal esp8266 board runner

I've been playing with the interesting esp8266 which can be programmed with the Arduino IDE and has built in Wifi capability. Today I made a little carrier board for just running the projects. My first time using Fritzing which is an amazing piece of software (although do save frequently).

The diode drops the 3.7 volts from the Lipo cell down to a safe 3.1V and all seems to work nicely.