Just as an addition to this, a friend just pointed out this tweet
https://twitter.com/#!/brandcarrie/status/20333195936
About to set up a Tower Bridge Twitter with the IT boys... Any advice?
https://twitter.com/#!/brandcarrie/status/20333195936
About to set up a Tower Bridge Twitter with the IT boys... Any advice?
"follow our new Twitter account for Tower Bridge.... @TowerBridgeExh"
@TowerBridgeExh is invalid, so if this is the same one, then they didn't originally go with the stolen account. I also see several similar accounts (like @tower_bridge), so this might not be related.
Way to piss off your target market.
EDIT: User, not owner.