You mark my words, 10 years on and it would split. The Lowlands would throw in their lot with Northern Ireland, while the Highlands and the RoI would become the Gaelic Republic. 100 years further on and we'd all be back together again as a septic colony. Magic Roundabout, anybody? (I speak as a one who has British and Irish citizenship, just like the er, harrumph, baby Blairs do through the scouse g!t.)