I bet the Harpercrits have one of these

Today is the first day of the election in the UK and will also be the place of new toys for political junkies. New polls based on real time, instant punditry and one of these - a swingometer - a tool that analyses election results based on swings in public opinion. Play with it for a couple of minutes and you will be hooked. The BurdReport wonders just which website in Canada will have one for us in the next few days.