On Fox News (surprise!) Palin was gangbusters. The Fox folks even produced a focus group that went heavily (but not completely) for Palin.
Over a CBS, a more scientific "instant" survey came to an opposite conclusion, finding that most viewers rated Biden as the clear winner over Palin, but including a high number of undecided voters.
Thus far, the best description of Palin's performance we've seen comes from one of our favorite blogs, Daily Kos. Here's their quick summary:
Palin was like one of those dolls where you pull the string, and some pre-recorded message comes out. Pull string, "They hate our freedoms!" Pull string, "Obama will raise taxes!" Pull string, "Drill, baby, drill!" It was tiresome and, frankly, a little boring.