North to the Future
Her positives are obvious enough - she'll bring youth and excitement to the ticket. And, let's not kid anyone, her main purpose is obviously to attract female voters, especially disgruntled Clinton supporters. It also appears that McCain is keen on reviving the "maverick" myth, in an effort to distance himself from Bush, so picking an obscure Alaskan Governor is about as "outside Washington" as you can get.
Of course, I'll be the first to admit I don't know a lot about Palin - if she turns out to be an empty vessel, then this pick could backfire spectacularly. McCain took a risk but, up against Obama, this was probably a risk worth taking.
Speaking of Obama, I haven't had a chance to watch his convention speech yet - that's on the agenda for this evening. But the early reviews have been very positive.