someone was unlucky and missed the Early Bird Sale cut off.

http://online.wsj.com/article/SB1000...ch_Below_Video

"Office Depot, for example, told the Journal that it uses "customers' browsing history and geolocation" to vary the offers and products it displays to a visitor to its site"

I've not seen it on either BA or Qantas but I did on Easyjet a few years back. It is probably becoming less of an 'issue' with airlines as one can use Zuji or Expedia to bulk check so if there were such descrepencies then an airline would get a pretty bad name for itself.

I do recall trying to book some flights from London to Zurich once. I was on my work pc and a mate was on his and easyjet were throwing out different prices for each of us for the same flight. Again I don't think it happens too much with the main airlines these days. Too much risk in hitting the headlines for the wrong reason.