Palin’s Trial Balloon?

The rest of her sanctioned pics are here. Shushannah Walshe reports on the meaning of Palin's bus tour:

According to a source with knowledge of Palin’s operation and thinking, keep a careful eye on how long the tour lasts, because it is intended as a way to test the presidential waters. If the road trip ends abruptly, it’s a sign she didn’t get the enthusiastic responses she believes she needs to launch a campaign. If the tour heads to regions outside of the Northeast like Iowa and South Carolina that, the source says, is a “big indicator” that Palin will pull the trigger.

I'm sorry, but all I could really think of was the strange parallels between loud, obnoxious attention-seeking bikers and, well, you know who: