Decent Wifi in Heathrow at last

Sitting in Heathrow Terminal 3 waiting to board a flight to Los Angeles... it's nice to see that the airport finally has low-cost WiFi access (at least in Terminal 3). It would be have been great to have this when I was flying pretty much every day with NetApp; it must be a great way to milk money out of thousands of business travellers sitting around with nothing else to do for hours!