Its sad that websites haven't broadly deployed SSL and STS.
Anyone that has fired up backtrack in a public place has soon learnt... once you see all the twisted pages people around you are loading up... ignorance can be bliss. Especially if i'm spending 15 hours strapped into a pressurized metal tube with my wifi neighbors.
Anyone tried this on AirCell's GoGo? "Ladies and gentlemen, Air Canada would like to remind you that complaining about our craptastic IFE system from FL370 is just as distasteful as snooping your seat mate's session cookies. Stolen facebook accounts are complimentary for passengers in the Executive cabin, and are available to passengers in economy for $6"