This is wrong on a matter of fact - once the bill establishing a referendum has passed then the boundaries will be redrawn to 600 irrespective of the outcome of that referendum. Which is the main reason I couldn;t vote for the Bill as currently constituted (as I said further up the thread) and would recommend MPs vote NO if that sticks.
But if the referendum happens it's a case for endorsing FPTP or backing something better. On the wider question the fact that Lib Dems are advancing this for purely cynical reasons in no way means it isn't worth having for totally other reasons. I genuinely believe that if AV is all that is on offer it is worth taking. A NO vote really would end the chances of PR, whereas a yes would bring PR into being for local government in relatively short order, with HoC following on in due course.
As for just slagging off everything the coalition does that is just silly juvenile posturing. Where they are right (ID cards, prison numbers) we should say so but put it in context of all the other shit they are responsible for. i want to smash the coalition politically/ideologically, but this isn't achieved by voting down electoral reform as even if it weakens Clegg's personal authority it leaves the basic assumptions behind the cuts drive intact.