This project is currently in development.
ARDUINO CODE FOR THIS PROJECT IS HERE:
https://github.com/tschak909/atariwifi
I have been working for the last week and a half after getting @mozzwald's ESP12E prototype board on a new firmware that I want to turn an ESP8266 into a full fledged network adapter for the Atari 8-Bit.
I've talked about this on Facebook, and other places, but to quickly re-cap:
THIS IS NOT SOLELY AN ESP8266 MODEM EMULATOR.