I think there's some unnecessary confusion here, stemming from attempts to combine two separate events:

1) Barack Obama being declared the Democratic nominee - this will occur in August, at the convention in Denver.

2) Hillary Clinton conceding defeat - this may never occur at all.

Does it really matter if #2 happens today, tomorrow, or never? Only as it relates to unifying the party, and this constant harping on Hillary's morbid tenacity is only causing her die-hard supporters to become increasingly angry and shrill.

With a nod to C.S. Lewis, there's no more news to be had here. Obama's margin of victory is something I can learn in August. That he was going to win, I knew already.