What if Gordon Brown had called an election in 2007?

Here's another one from the alternative history files:

October 2007, Gordon Brown decides to call a General Election. The campaign is a total and utter disaster for Labour, and exposes Brown's many deficiencies as a campaigner. The Tories win in marginal constituency after marginal constituency and the election result ends up with the Tories as the largest party, though still short of an overall majority. Newspaper commentators mock Gordon Brown as a failure and write about how wonderful David Cameron is.

2007-9: The Tories implement their two policies by cutting inheritance tax and introducing workfare. While struggling to come up with some other policies, they preside over the collapse of the economy (including the failure of at least one major bank) and sky-rocketing unemployment. Gordon Brown stays on as leader of the Labour Party.

May 2008: With Labour still in disarray, the local elections see gains for the Tories, but Ken Livingstone is narrowly re-elected as Mayor of London. The Lisbon treaty is rejected in a referendum landslide.

March 2009: Tory government falls after they are defeated over their budget which attempts to slash public spending in order to reduce the deficit.

June 2009: General Election called for the same day as the European elections. Labour campaigns on Gordon Brown vs George Osborne's record on the economy plus attacking the Tories for favouring the rich, increasing unemployment and cutting public services. With many Tory voters staying at home, and others switching to UKIP, Labour wins a solid majority. Newspaper commentators mock David Cameron as a failure and write about how wonderful Gordon Brown is.