Sir Reg Empey is currently on the stage and I'm crouched at one side of the hall typing away on Michael's laptop, so forgive me if this piece is a little rough. David Cameron left ten minutes ago, having electrified the hall.
He reiterated his commitment to creating a dynamic force with Ulster Unionists, cementing NI's status as a peaceful, prosperous part of the UK. His vision is, he maintains based on three strands - a belief in the Union, a belief in democracy and a deep respect between the two parties.
Cameron stressed that he is not a Little Englander, he believes in a big Union. What draws us together is a shared belonging based on our past and our destiny.
Noteworthy points - Cameron alluded to his relationship with Conservative MPs Gow and Naeve, who were killed by the IRA. He reiterated several times that he will not be neutral on the Union, actually using the 'selfish and strategic' phrase. Clearly though the alliance will contest FST and South Belfast. Quite right too.
A great message. More considered, less hurried reaction later.