The signals are mixed. I’ve heard that O4P organizers were told to expect an important announcement. I’ve read strategists who suggest the later the better,while Perry and Romney duke it out. Palin has set a drop-dead date of late September.
Her problem is that her army is focused on September 3rd. They are Tea Party people and this Iowa event is billed as a Tea Party event. If she doesn’t announce then, she is going to lose a lot of support, my wife included.