Sorry for the short hit and run diary.
This just appeared in my newsfeed on Facebook from WTDY in Madison:
BREAKING: Madison City Clerk predicting turnout in Madison of over 100 percent (meaning large numbers of people are voting and registering at the polls).
I will add more as it becomes available
Madison City Clerk tells me turnout is on pace to hit 119% in Madison, adding "That would be unprecedented."— Amy at WTDY(@AmyBarrilleaux) June 5, 2012
In case any of you are wondering how it is possible to break 100% it is because in Wisconsin we have same day registration. Which means if this report is correct that 19% of the voters in Madison are first time voters.