The following GitHub repository is the initial release and snapshot of my current work with this nice little sensor. Feel free to give suggestions or feedback!
https://github.com/kfricke/micropython-hdc1008
HDC1008 Humidity and Temperature Sensor
Re: HDC1008 Humidity and Temperature Sensor
Updated to MicroPython 1.8 and tests implemented to work on ESP8266 and pyboard.