I would suspect that the current paperwork delays occurring, and multiple agencies referred to, as stated in posts 181, 273 and 292 are also nothing to do with BAE.
I suspect that the MOD, with its various involved agencies such as IPT and the new MAA, is tying itself in knots trying to ensure that all the airworthiness ticks are in the right box before anything else happens - like the aeroplane flys!!! And who is to say, if this is indeed the case, that this approach is actually wrong? Apart from the fact that they have had quite a few years to get ready for this moment.
Of course I could be wrong, I'm not close to the project, but this seems (to me at least) to be the hints we are getting as to what is going on (e.g the reason for non appearence at RIAT).
If this is the case, given my limited experience of the speed at which MOD wheels turn in peacetime - what are the bets on the first MRA4 not arriving at Kinloss until somewhen in 2011?