Travel Technology - BT OpenZone in LGW?

Does anyone know where the BT OpenZone hotspots are in LGW? I saw a couple listed in BT's site listing, but the locations are rather vague.

I wish t-mobile would have service in the DL CRC :(

There's one in the lobby area of the Hilton (South Terminal)

There's one in the lobby area of the Hilton (South Terminal)

Any inside security anywhere?