I just went over to look at Sarah Palin's bio at wikipedia (which, by the way, seems like someone has taken trouble to make very, very positive. Those of you who know about the scandals in her administration who can edit wikipedia might want to make some changes).
In any case, it says:
On Friday, August 29, Fox & Friends reported that Palin's family departed hastily from Anchorage, Alaska aboard a Gulfstream jet that landed near Dayton, Ohio, site of McCain's planned vice presidential announcement. They cited the website Change&Experience.com, which also had correctly leaked travel details for Sen. Joseph Biden to Springfield, Illinois for Barack Obama's announcement.
link
So who knows if this is true. Note also that The Page now features a big picture of Palin.