Here's someone working on a ESP8266 module for the Zero, which will include a simple power supply: https://hackaday.io/project/8678-rpi-wifi https://hackaday.i

Here's someone working on a ESP8266 module for the Zero, which will include a simple power supply: https://hackaday.io/project/8678-rpi-wifi https://hackaday.io/project/8678-rpi-wifi Looks like they are planning to offer a few for sale eventually.