Looking at the figures on the Star-Trib page, it looks as though they’re still out there. As of 12:29 EST, there are still 5,634 challenges to go.
Those already adjudicated are:
696 challenged by Coleman and
419 challenged by Franken
All — check this out. This ballot says it all:
http://senaterecount.startribune.com/media/ballotPDFs/Wabasha_WabashaW3_challengedballot2.pdf