gotta link?
Based just on what's mentioned in this thread, it's not a bad idea. If you've been on this ride since last fall, you know that much of the initial action was around the ESP-8266 as a wifi 'connector' for other systems, using the preloaded AT firmware via serial. As part of my learning process, I wrote python Http client and server apps using the AT firmware... and they worked great. Most of us have now focussed on writing custom firmware, but the AT stuff is still quite suitable for many (perhaps most) of real-world IoT applications.
Also, this forum is full of people moaning about the lack of available GPIO on the ESP boards... soldering hair-fine wires right to the ESP itself, trying to figure out how to repurpose other pins like reset, serial, flash, SD-card as GPIO... Note also that alot of the other wifi parts in this space, like the Spark Core and Photon, all have lots of GPIO.
So... a board with the same footprint but alot more GPIO? And (presumably) providing much-simplified implementations of http client or server functionality, or other modes like mqtt? Good idea.