I bought one as well although I didn't do anything yet, would you mind share what you did/recommend doing? I was thinking to make a temperature sensor monitoring device, as I have an arduino that is doing the job now
now, i'm having to build out PCB's to support everything (including the voltage regulators to 3.3v and 5v), as i've outgrown breadboards.
Could you link a couple of links to resources you found useful? I haven't look at it properly but when I try to search I was a bit confused and not sure on where to start
https://github.com/esp8266/Arduino
https://github.com/cesanta/smart.js/tree/master
using the arduino environment, i had a circuit up reporting temperature in less than 5 minutes.