On the higher speed front: has anyone looked into 802.11ah (900mhz wifi) or any of the smart "TV white space" stuff? It's standardized but I can't find any hardware on the market. There is a company near us (Irvine, CA) that apparently has an 802.11ah chipset but no cards or USB versions and emails go strangely unanswered. Found them since they had a press release about hitting like a few tens of megabits at over a kilometer on very low power and a small omnidirectional antenna.