In fact it's not really a shock at all. It's the third time he has resigned since July 2008. Belgium recently went for three months without a government.
Yves Leterme, you recall, is the French speaking Prime Minister who couldn't sing the Belgian National Anthem, in fact didn't even know what it was, believing it to be the Marseillaise.
Belgium is a country created by the British in the 19th century to serve a particular purpose. That purpose has expired. I think everybody knows what the solution is, except the Belgians.
Belgium's stint as the European Presidency begins on 1st July. It is good news for everyone who hopes nothing further will take place on the European stage to make a nonsense of our democracy. Perhaps we could have Cyprus after that.