i have the macbook air mid 2011 - its the 13'' model, 4GB, 1.7 Ghz i5. i recently upgraded my broadband to fibre optic and i should be getting 66Meg Max, however..drop 10Mbps from the exchange...they guestimate around 56Mbps average download speeds for me. Now, when i run speedtest..the best i've seen is 31Mbps DL and 17 Upload. it tends to be more like 27Mbps DL though...so i'm getting half of what i should be. when the engineer was here with his ''ahem-windows laptop'' he was getting 56Mbps on my wifi..so, im curious as to what the macbook air can handle on wifi? or are there any other tests i can do? sadly having no ethernet port on the air..i can't try a cabled connection to see if i am actually getting 56bps. cheers anyways.