BTW, it is in Clinton's political interests for Obama to lose. Otherwise, his wife has no chance of ever becoming president (Democrats are not going to win three terms in a row, and she'll be too old in 2020). Do not be surprised if Clinton's speech ends up doing about as much good for Obama as this one did for Dukakis:
http://www.youtube.com/watch?v=J5FpRg3Tf9Y
Everything seems to indicate that Hillary is not planning on running in 2016, no matter what happens this election.
I totally agree. She would be 69 by Election Day 2016 and 73 by Election Day 2020, and although Reagan was 69 when he was elected, one of the main criticisms of him in the 1980 campaign is that many people thought he was too old to be President.