I missed this news at the time. Iceland’s Best Party won six of the fifteen available council seats on Reykjavik’s City Council. Party leader Jón Gnarr is now the mayor of Reykjavik.
“We stand for an honest approach and participation when it comes to governing the city. [Our support] is a reaction to politics and politicians who have been unwilling to stand up and admit they are responsible. [The elections] were a democratic protest against negligence.”
Some aspects of their platform are explained in the video below.
http://www.youtube.com/v/xxBW4mPzv6E&hl=en_US&fs=1
A profile of Jón Gnarr, from the New York Times.