> Edimax EW-7811Un
Definitely NO! The device isn't FLOSS compatible at all. You should only focus on the ath9k_htc compatible ones. The smallest and cheapest device I am aware of (already compared all of the listed devices) is the Unex DNUA-93F. There are alternatives such as the Onkyo UWF-1, and some other models, but they can be very expensive, while no better.
