I think this has the potential to be a good thing, as long as it doesn't turn into a rah-rah, let's get out the vote for Democrats rally. The labor movement needs to galvanize around more than just an election cycle. In fact, I have a novel idea(this means you shouldn't hold your breath) that could really build some solidarity, as well as some major press at a time when the labor movement could definitely use some.
Visualize for a second the National Mall in Washington, full of working-class folks from every conceivable labor organization. Then, to the roar of the crowd, the leaders of the AFL-CIO, Change to Win, and the independents(well, probably minus the Carpenters) all come on stage together, and announce that they are going to bury the hatchet and put forward a united front to move the struggle forward into the 21st century. Can you imagine the solidarity(and let's not forget the press) that would create?
If only it were that easy. I guess there's always hope.
p.s. - I am actually looking to catch a ride so I can document this event. if anyone is around the Brunswick, MD area(Frederick County), shoot me a message.