Um, last I checked, Obama still won more popular votes, more states, more pledged delegates. Hillary won California and New York. These states will vote for either of the two Democrats. She narrowly won Texas, but Texas will go Democratic when hell freezes over (and anyhow he won the caucus there). Yes, she won Ohio and Pennsylvania, which are big swing states. But the result of a CLOSED PRIMARY has no predictive power over the results of the GENERAL ELECTION. Nobody won Florida or Michigan, because those were illegitimate elections, held against party rules, when both states were given ample time to schedule their elections for a week or two later and knew that they would be denied their delegates if they did not. People who were informed knew that their vote would only be symbolic, and so many did not vote or else voted in the Republican primary where their vote would count. We simply do not know what the result would have been in Florida had they held their primary in accordance with party rules and both candidates had been given the opportunity to mount a full-fledged campaign. And in Michigan, Obama wasn't even on the ballot...
Moving along, Obama won Illinois (just as much of a feat as Hillary winning her own home state), which was a big, Democratic leaning state last time I checked. What's more, he also won Virginia, a big state which has been getting more democratic (they have elected two Democratic governors in a row, a Democratic majority in the state legislature, a Democratic Senator and about to elect another Democrat to replace their retiring Republican Senator. He also won a medium sized state, Colorado, which has been trending more Democratic. He has a chance to change both of these states from red to blue, Hillary does not.
He has also consistently outperformed her among independents and disaffected Republicans, and can beat John McCain on government ethics issues, whereas Hillary cannot.
The only two states Hillary has a chance of winning among the remaining ones are Indiana and Kentucky. North Carolina is going to go to Obama in a landslide, as is Oregon. Indiana currently looks like a draw. There is no way that she can catch up in pledged delegates, and no way she can catch up in popular votes to make a case with the superdelegates without winning big in Indiana and pulling a major upset in either North Carolina or Oregon. Not gonna happen.
I hope she has the decency to bow out after she loses the primaries on May 6, so this party can get behind Obama and keep Insane John McSame away from the bomb bomb bomb Iran button.