The new coalition in power in UK finds "shock horror" new tanker costs seems to be today's Press story , which is more than a bit surprising, as the deal was signed in 2008. Could be underhand skulduggery manoeuvres by Boeing sympathisers inside MoD/ HM Treasury to knock a hole in the A330-based tanker order book, which would do them no harm in the struggle for the KC-X order (which is why I've posted this here).*
I know that this sort of behaviour "isn't British", but then, neither is Boeing.
*Continuing the Great Britsh Tradition of buying "cheap" from the US and then getting lower performance than they were sold