With the latest firmware, this wireless adapter works, not tried it in AP mode but with the antenna should give a bit of range..
http://www.amazon.com/exec/obidos/ASIN/B00D86WBK0/tvwb-20
Model is EDUP EP-MS150N
http://www.amazon.com/exec/obidos/ASIN/B00D86WBK0/tvwb-20
Model is EDUP EP-MS150N