This New York Times Article on Palin lists a series of concerns.
We already know that she likes to fire government officials that she either doesn't like personally or who cross her or her friends in the course of doing their jobs. But apparently she also hands out government jobs to unqualified friends from high school and such. And, it turns out, she sends aids to try to intimidate public critics.
If I could pick one figure out of American history that Palin reminds me of, it would be Huey Long. This country has dodged real threats that a potential dictator could take over twice. Once was when Aaron Burr was driven into exile after he killed Alexander Hamilton in a duel. The other was when Huey Long was killed by an assassin in 1935.
Of course, Long was a left wing populist with dictatorial tendencies and Palin is a right wing populist with dictatorial tendencies. Also, Palin is at the beginning of her career whereas Long held power in Louisiana for many years. But the similarity I see is the style of government. Both Palin and Long present(ed) public images as fighters for the little guy against entrenched political interests. But both see politics as a personal grudge match in which public authority is transformed into personal power. These kinds of politicians are the biggest threats to Democracies.
The more we hear about this Governor, the more frightened I am that she will ever get in a position of real power over anyone outside of Alaska. Frankly, if I were an Alaskan, I would seriously question whether fat payoff checks she sends out were really worth it. That John McCain would even consider, let alone actually appoint, Sarah Palin to be the Vice President of the United States is unforgivable. It shows a shocking lack of concern for the country and a pathetic emphasis on what is convenient for his own personal ambitions.