Hillary can very easily get the VP nod. It's all in the convention. The VP is nominated just like the Presidential Candidate, through the delegates. We've gotten so used to the Candidate getting his choice in running mate that there is hardly ever a vote over the issue at the convention at it, it's usually rubber stamped. This year could be different. With the slim margin of delegates separating them, if the VP nomination actually goes to the floor this year, it could be interesting. All it takes is her pledged delegates to vote for her on the floor, and the VP selection process goes into a real nominating contest, which many speculate it will. If that's the case, many people feel that a lot of the superdelegates that had originally supported her, but switched to Obama, might support her for the VP as a conciliatory gesture.
It should be interesting. Many people are urging him to make her the VP simply so this sort of thing doesn't happen at the convention.