No luck with uath() - got the firmware, the device is recognised but uath0 never appears in the list of interfaces:
uath0 at uhub3 port 1 "Atheros Communications Inc WG111T" rev 2.00/0.01 addr 2
uath0 detached
But never mind for now. 1.1 MB/sec is slow but sufficient, and the link is stable.
Eventually I'll move the OpenBSD box close to the router and go wired again.
Clearly J65nko has higher-end h/w than I do
