Over the past year or so the wifi situation in Dublin airport has been in flux. Most of the time the airport has been offering free wifi via Eircom, but the offer has always come with the disclaimer that the offer was only valid for the month.
According to Travel Extra Dublin Airport Authority and Eircom have struck a deal to offer free wifi in the airport permanently.
Unfortunately there’s no mention of this on either the Eircom website or the DAA or Dublin Airport sites.
I’ll be in Dublin airport tomorrow so maybe I’ll be able to confirm this rumour.