The thing that the debate, plus all the other coverage, highlighted is that Palin lacks experience but more importantly lacks the intellect.
After all, experience has to be gained somehow and lack of it, whilst not a plus, should not be too much of a negative.
But only as long as it is clear that the person has the ability to learn and gain experience.
Palin has not demonstated this ability and whilst it may be too much to expect her to reel off solutions to foreign policy problems that hve stumped better minds that her, it is not unreasonable to expect her to be able to construct a sentence that doesn't leave you scratching your head, trying to understand just what the hell she meant.
BTW the full debate has been shown on British TV and the British media has followed Palin's progress very closely. (And probably so has everybody else around the world).
Her folksy charm may be an asset to winning the vote in middle America but it doesn't really do anything for us on this side of the pond. Although I am sure that it will give the comics plenty of material should McCain and Palin win.