I think the renewed Clinton bashing is quite unhelpful, and based upon a pretty unfair reading of the facts. Hillary is doing more for Obama than any defeated candidate in my memory. Bill Clinton is an ex-President, and you can't just expect him to be an attack dog. Despite his being savaged unfairly during the primary campaign, Bill Clinton has made a very compelling case for Obama.
If Obama supporters were smarter, they would spend more time building up the Clinton brand, and reminding voters how well they did the last time the Democrats ran things. This is particularly true when it comes to the economy.