This is the official response of the Obama campaign to the speech Governor Palin gave last night.  It was released by Bill Burton, spokesman for the Obama campain.
"The speech that Gov. Palin gave was well delivered, but it was written by George Bush's speechwriter and sounds exactly like the same divisive, partisan attacks we've heard from George Bush for the last eight years. If Gov. Palin and John McCain want to define "change" as voting with George Bush 90 percent of the time, that's their choice, but we don't think the American people are ready to take a 10 percent chance on change."

I do not know who wrote the speech or who the person had worked for before; but the statement is nonesense.  David Axelord, Obama's campaign manager, was the strategist and spokesman for the Chicago Daly political machine his whole career, (except for when he worked for the terrorist Bill Ayres, the racist Rev. Michael Pfleger, and "I am not proud of America" Michelle Obama).  For Mrs. Obama he designed a program to drive poor black people from the emergency room of the University of Chicago hospital.  How dare Obama sink so low as to complaign about who may have written one speech for the Alaska Governor, when his house is filthy with Daly Chicago Machine hacks.. 
This indicates than Obama is at a dead-end.  When he cannot use race he has nothing.
The 90% voting quote is old.  It is old and at best an intentional lie to mislead.  A lie because even Obama voted 90% of the time with President Bush.  It is the nature of the mundane matters that often get voted on in the Senate.  First, Governor Palin never voted in the Senate -- this may be news to Obama (like there are not 57 states) and the important issue is the 10% that McCain voted against President Bush.
As Mayor Rudy Guilianni said, Obama has Nada.  If he is not spinning a story, no would notice him.

Governor Sarah Palin has now issued a challenge to the Democratic ticket and in the process has taken away the unique factor in their favor: Senator Obama’s race. Obama’s race established the whole ticket’s legitimacy to represent the experiences of the “everyday American.” Yes, McCain is a true war-hero; yes, McCain is a political maverick; but I, as a black man from the south side of Chicago, truly understand what America needs. The Obama ticket had a several advantages before Thursday. They were Obama’s American experience story, his historical nomination, his ability to electrify an audience, and finally the “war” intertwined with the negative perceptions of President Bush.
After Governor Palin’s speech these variables were nullified.  Senator McCain and Governor Palin made the race between them and Obama’s inside the beltway, politics as usual ticket. Governor Palin took away Obama’s race card by making the issue not about his and his charisma but about family and the totality of the familial experience.
Although the Country had “fatigued out” about Obama and his wife’s “experiences,” their Audacity of Hope, the public’s Obama fatigue was not re-focused because a viable alternative had yet to coalesce. The bottom line remains that with all of Obama’s star attraction, celebrity status, and more money than any political candidate has ever had to play with, he was not closing the deal. His standing in the national polls changed little, with or without Hillary before or after being a nominee. This is primarily because Americans were not buying his and his wife’s (the family’s) narrative. (This was solely against Senator McCain. Governor Palin only came on the scene yesterday.)
The majority of Americans recognized that he was an elitist, by training and taste. He and his wife had little value for America or Americans as is established by his “friends” and their own comments. It is obvious from every situation that religion is a convenience of the time for him; not a faith. No one in his family has ever worked for a living; everything was achieved through affirmative action or tax-payer largesse. This was all excused by the media and by the voters psychology because of his race.
In selecting, Senator Biden as his running mate Obama only re-enforced the perception of him as one of the Chicago politics old boy network. He selected the oldest, most liberal, and never having worked person as his running mate. Biden represents neither change nor hope.
Hope and change were Hollywood musical “hooks” for the Obama campaign. Their intent is to catch you psychologically but not really mean anything, like: “rama-lama-ding-dong” or “mama said there will be days like these.”
Governor Palin trumps Obama previous use of race to beat Hillary Clinton and to get this far in the presidential contest. His race, which Obama constantly brought up (both defensively and offensively), is what undermined Hillary’s argument, which used to work for Bill, that “I can feel your pain.” “I am one of you.”   The conditions of poor blacks reminded people of not only America’s guilt; but also that Hillary was now one of the privileged.  She's a former First Lady with a husband who was making millions of dollars.

Obama won because he made guilt and the daily experience of Americans his through the effective use of his race.

Governor Palin said wait a minute, I am not buying this, and I am going to speak the truth. I represent the true working American, (white, black, or Hispanic). My husband and I have really worked for a living to produce and sell. You, Obama with your wife and your running mate have not done a productive days work since you were all 17. My husband and I did it all without affirmative action or living of the taxpayers of this Country. So quit hiding behind your race as an excuse as to how a “community organizer” becomes overnight a presidential candidate.
If you want to talk about the struggling American family, I am it. You and your running mate have never struggled, including the $17,000 per year private secondary school you went to in Hawaii. You can spin a good story of being black in America; but that is all it is a good story. You, in spite of what your Reverent Wright says, do not know the struggles of working Americans because the fact is you and your wife and Senator Biden have only worked for a few years of your life. You then all signed on to the public trough.
Obama, what is it about Senator Biden’s forty years as U.S. Senator, since he was in his late twenties, that you consider work by American (not European) standards? What is it about your wife’s “work” that makes her worth $300,000 per year to the University of Chicago Hospital? Your wife makes more “fake” money each year than my family has had over many years.
If it was not for Obama’s race and his use of that fact to present himself as one with America’s average people, he would not be taken seriously. Now Governor Palin has presented a more compelling story: a real American working person running for a national office and this person is from America’s last frontier. To the majority of the American public, her story rings true on its own merit that “I understand your lives” without being adjudicated through the prism of race.
Obama recognizes that without race he is nothing. Specifically his race got him to become the nominee of the Democratic Party and being nominee of the Democratic Party, Obama himself recognizes is his sole preparation for being president.
During Hurricane Gustav, Anderson Cooper questioned Obama on his response to the argument that Sarah Palin has more experience (as mayor and as governor) than he does. He said Palin's town of Wasilia, Alaska has 50 employees to his campaign’s 2,500 employees. Wasilia’s budget is $12 million while his campaign budget is three times that each month.  Obama ignored the fact that she was governor.
Race is what got Obama here: the guilt and the identification. Now the guilt is over and exposed and the American Family identification is with Governor Palin because her daily life has truly been like ours.