Interestingly even the programme pundits and presenters are calling the Taoiseach by his christian name. I noticed this when we had an Irish Election Special on 18 Doughty Street this week. I asked Jarleth Burke, the Fine Gael representative, why he kept calling his opponent 'Bertie'. He said it was because everyone else did!
UPDATE: Dan Hannan on why they decided to stick with Ahern HERE.