I'm risking a crapstorm of commenters on this one, but I'll post it anyway:

Immediately after Star Jones announced on The View this morning that she was leaving the show, People's web site came out with a story where Jones says that her contract wasn't renewed; "I feel like I was fired," she concluded. Apparently, she was told by The Powers That Be (coughBarbaraWalterscough) that her contract wouldn't be renewed just a few days before news leaked that Rosie O'Donnell was going to be joining the show in September.

So, despite the rumors, Star didn't ask to leave because of Rosie's arrival. At least according to Star. Heh. Things are getting interesting over there.