Looks like we're nearly at save the LibDem's time. 55% of Conservative voters now accept the need for an electoral pact. Certainly the Conservative Whigs owe a great deal to the Liberals - if not the Democrats.
Personally I'm amazed at the plummeting electoral fortunes of a junior partner which has managed to introduce quite so many manifesto commitments within weeks of coming to power - far more than Blair's 1997 steroidally obsessed regime. An electoral pact may well become necessary.
But probably only once a referendum on AV has been lost...