ETA: I did some checking on a U2 message board, and the general consensus among the folks there is that by counting this way, Bono is either intentionally screwing around, or trying to convey a sense of vertigo that someone might feel if, say, they were in an elevator that was going methodically through the floors (1..2..3..) and then suddenly zoomed up to the 14th floor.
Another interpretation is that he doesn't really say "uno" at the beginning, he says "Unos" which means "Some" in spanish. So if you take that interpretation, some think it's another way of trying to convey disorientation or vertigo. He's so dizzy that he can't count straight.
ETA (again): Yet
another interpretation is that the numbers represent certain biblical verses that have meant a lot to Bono throughout the band's career. The verses are John 1:14, 2:14 and 3:14.
John 1:14:
And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth.
John 2:14:
And found in the temple those that sold oxen and sheep and doves, and the changers of money sitting:
John 3:14:
And as Moses lifted up the serpent in the wilderness, even so must the Son of man be lifted up:
Does it show I have the day off and nothing better to do?
