If anyone here reads any of the political blogs in any detail you will see that there is always a large group of Conservatives trying to "talk up" two things that have never happened :
1) That a Lib Dem MP will defect to the Tories
2) A bad opinion poll means impending doom for the Lib Dems.
Funnily enough, they have been talking about a Lib Dem defection since 2001 and have been talking about the Lib Dems suffering in the polls since 1990 (when when we were at 5% in the polls).
Only last month with the Lib Dems at 18% in some polls, the Tories were "cock a hoop" that this was the end for the Lib Dems. Now, one month later, the Liberal Democrats are up 5% to 23% in the opinion polls.
So bad news this months for all those Tories. "You're all doomed", as Private Frazer from Dad's army would say, but not this month.