Originally Posted by
LandingConfig
The official opening date was 27th June.
Indeed it was, though GLA don't seem to have marked that event, perhaps they used up all their balloons and ticker-tape in the celebrations on May 2nd.
And if BA's use of a 787 on the 27th (and on the previous day, too) was intended to tie in with the anniversary of the Queen's official opening in 1966, instead of being just a consequence of having 3 AOG Airbuses, they don't seem to have told any of the media about it.
Sometimes coincidences are just coincidence ...