So it appears that the Nanopi R2S is now available. With 2 gigabit Ethernet ports (one of which is via USB 3.0), quad-core A53, 1 GB of RAM, 1 USB 2.0 port plus a case, for a mere price of $35 (except that one would need to buy a MicroSD card and get a 2A USB adapter.
Does this sound like a good hardware for router? Are there any better alternatives in the price range for typical house setup, accompanied by some mid-level AP?]
Edit: It appears that the price is $25 including the case.
It's a shame the USB port is only USB 2!! It could make a good cheap media server.