Matt Yglesias has the poll, Ezra Klein digs into it deeper. Short story: the term "socialized medicine" doesn't turn people off like it used to. In fact, a plurality of Americans say they'd prefer socialized medicine to the current system.
Now, the immediate impact of this is indirect: what Democrats are proposing is not, in fact, socialized medicine, so all this polling does is indicate that the favored GOP talking point (can two words be a talking point?) against universal health care may not turn out to be as effective as they'd hope.
Yglesias, however, says that Dems should use this poll as cover to push for some attributes of actual socialized medicine. Without getting into the merits of that, I'm skeptical that these numbers will hold if folks actually began to proactively adopt the label "socialized medicine." It's like impeachment: even if it polls well now, two months of the media being aghast at how radical the Democrats have become and things will start to slip quick. I hate to say play it safe, but...play it safe, and be thankful that conservatives will have a harder time shutting down universal health care than they're expecting.