Just out now:

Barack Obama leads Hillary Rodham Clinton, 48 percent to 44 percent, in a poll of Connecticut Democratic voters released today by WTNH, Channel 8, and the website, Connpolitics.tv. ... The poll is first of Connecticut voters since John Edwards left the race, leaving a two-way contest between Clinton and Obama. It also is the first showing Obama edging ahead of Clinton. A Rasmussen poll earlier this week had them in a dead heat.

MOE is 3.8%. Poll taken before last night's debate. It suggests that Obama is either pulling in those undecideds or the Edwards supporters.