The polls are open till 10 p.m., Irish time. (How many jurisdictions keep polls open that late?)
Ireland, of course, is the land of the Single Transferable Vote (STV).
Indications are that turnout is high.
The Fianna Fail party, which has led the government during the current financial crisis, is expected to fall to third place. How often does a governing party in a democracy fall to third place? Not too often. Canada 1993, when the Progressive Conservatives fell to fifth place, with only 2 seats, must be the record.
Fianna Fail, which won 42% in the 2007 election, has been polling at around 15%. So, in terms of votes, if not seats, the party could challenge the Canadian record (where Conservatives fell from 43% to 16%).