The editorial board at the WaPo are not the most progressive individuals in the world.  However, the byline, "A strong convention speech alone can't answer the questions about her readiness", suggests that the hawkish/conservative editorial board may not have given her a complete pass... and may cue others in the MSM to not do the same.  You can read it here.  The last bit of the article:

To question her readiness is not to doubt her talent or intelligence; nor is it a reflection of gender bias, snobbery or any of the other sins that have been ascribed to those who worry about Ms. Palin as vice president. Ms. Palin last night noted tartly "that if you're not a member in good standing of the Washington elite, then some in the media consider a candidate unqualified for that reason alone." It is a good applause line. But the fact is that Ms. Palin has an astonishingly thin résumé -- mayor of a small town, governor of a sparsely populated state for less than two years -- for someone hoping to ascend to national leadership. The country will need to hear much more from Ms. Palin before being convinced of the soundness of Mr. McCain's judgment.

This will be a crucial 36 hours for the Obama campaign as they seek to shape America's first impression.  It will be a delicate balancing act if they do it on their own.  If Hillary does it, she could singlehandedly put this election to rest with a hard-hitting but accurate ad for the Obama campaign.  36 hours.