Hackaday has a great article about efforts to hack the ES8266 Serial Wifi board that's making news in the maker community lately.
Some diligent peeps over at esp8266.com have managed to get gcc compiling for the Tensilica Xtensa LX3 microcontroller utilized on the board.

Youtuber "CNLohr", even managed to run a Minecraft server on it, hat's off to you, sir!