Regarding Heathrow hangars - I thought the whole point of T5 was that it would be big enough to accomodate A380s? Surely it's a shortsight on BA's part if they have to modify all their hangars now?!
And about engine choice, I heard there might've beeen a back-door deal between WW and Gordon Brown - that if the engine manufacturer was RR (thereby creating badly needed jobs/business within the country, etc.), Brown would move on some of the luggage restrictions and APD in return... Interesting thought