Yesterday I documented the early evidence about Obama's bounce out of SC and the Kennedy endorsement.
The table below includes data from substantially more states, and documents the extent of the bounce. The Obama bounce can be found pretty much everywhere, and is pretty consistent.
Big picture - this race has closed fast. What is surprising is how close the race has become in the northeast. He has also consolidated the African American vote in the South, which has given him the lead in Georgia and pushed him into at least a tie in Alabama.
From my perspective the key is California. Though he has closed the race in the northeast, that region would still give Clinton a delegate lead that Obama would be unlikely to overcome in the South and the Midwest.
California in turn will likely be decided by the Hispanic votes. There is some evidence that Obama has improved his standing among Hispanics in other states (In NJ Obama trails by only 47-36 among Hispanics, but in NY he trails 71-26.)