That’s interesting about the photon and the feather comparison - Adafruit sells both. I wonder why they both exist - I’ll have to read up on it some more.
Are there dev boards out there with this chip that are compatible with Arduino IDE?
That was my major draw to the WICED Feather - it works with the Arduino IDE and they have libraries, examples and instructions to get you going (something a hobbyist like myself needs 
)