There's a really good article on Calitics on why Proposition 8 lost this morning, and I gotta agree with most of its conclusions. While I don't fault those progressives who concentrated on the Obama campaign rather than work for No on Prop 8 (I think it's wrong to assume that the Obama supporters were necessarily No on 8'rs, much less that they were enthusiastic enough to work for the cause), I definitely agree that the movement's emphasis on preaching to the choir in liberal areas and failing to define the argument before the Yes on 8 folks could bring in the "What about the children?!!" shit was a significant mistake.
There should have been no money and effort put into preventing Prop 8 from getting on the ballot, as it's far too easy to get anything on the ballot in California through the referendum process and this issue has too much support on both sides to really hope that it could be marginalized into non-existence. Though Prop 8 may get struck down by the California Supreme Court, we need to get a "repeal Prop 8" proposition out there for 2010, despite fears that it could turn the gubernatorial election for the Republican candidate, and get out the vote in what should be a simpler message to voters than it was this election cycle.