Yes she is and Letterman's revelation should shut him up for awhile - if he's smart - big if. However, Palin should take the high ground when questioned about this - perhaps expressing her sympathy for the women and their families who were exploited by Letterman - something to that affect. I think this approach would get her much more mileage than hammering the snot out of him, however much he deserves it. My two bits...
I totally agree. She probably will, she is a very classy woman.