@tom.i, I tried to use that with all of the aforementioned cards without success, unfortunately.
However, I can report that the latest Arch Linux ARM kernel release for the espressobin does work with the RTL8191SE card mentioned on the wiki, I’ve tested AP mode over 802.11n successfully.
This is definitely an improvement, and works sufficiently well to function as a wireless router for now. Hopefully some progress can be made for ath9k and ath10k-based cards, as attempting to use those still just results with kernel panics at boot time.
