Hmm, can we look forward to arguments in in the future of Mr Blair's may have been leader because of an election where he made various commitments, but if they were that important the turn out would have been higher. What is the point of a consitution if governments don't feel they need a special mandate to violate it?
Personally I feel the main focus at present should be to build broad consensus that a referendum is needed, personal positions towards the as yet not finalized text will vary,and I think to argue about things on which are yet not up for public discussion would be navel gazing of a sort. Other people take a different view. The case on Iwantareferendum.com runs to 7 pages starting
here