"Support amongst the general public now stands at 62% according to the latest ICM poll: "
Very possibly, sp. But the matter was not in any of the main parties' plans put forward for the 2010 election, nor was it in the Coalition Agreement (which seems to have trumped the manifestos anyway).
A sizeable proportion of the elctorate would like the opportunity to have a vote on the UK's future in the EU. This issue WAS mentioned in the Tory manifesto but, apart from a few wooly statements from the Prime Minister, precious little has happened, or seems likely to happen in the forseeable future.
It is for this reason that I would suggest that when, and only when, the government has completed all the measures that were promised to the electorate should it spend any time on things that were not.