Let us all know if there are any official or unofficial updates. The NASA site is holding steady at 1:43 odds.
Tradesports should establish a market in this.
I see 1:60, but not the 1:43. Can you post the URL? Thanks.
Near-Earth Asteroid 2004 MN4 Reaches Highest Score To Date On Hazard Scale
http://neo.jpl.nasa.gov/news/news146.html