Prop 19 Coming to Colorado?

Kevin Drum and Matt Yglesias are discussing the prospects of a legalization ballot measure in the future after Prop 19's strong showing in California this year. Yglesias says,

Long story short, pre-election I thought of this as a totally quixotic undertaking but it now looks to me like it could realistically happen in the short-term if people organize for a presidential election year. Running the play again in 2012 might just disgust people so maybe 2016 would be the better target year. Or else maybe 2012 in a different state. Either way, I promise to be more engaged next time.

My understanding is that legalization will be* on the ballot in Colorado in 2012.

*Obviously with all of the caveats regarding the ballot access process