I think the ineptitude of the Wisconsin GOP in handling this from day-one has negative implications nationally on the efforts to scale back on decades of public union hegemony over the private sector and government. Places like Ohio and Indiana are achieving under-the-radar success, but who knows what kind of movement Wisconsin is starting that will threaten to undo those gains in the near future.
I think the WI GOP missteps also threaten to offer the Left an impetus for their own "Tea Party" movement, and I don't believe they'll be peaceful.