My sainted spouse has been saying for the past week or so that if Perry enters, Palin will endorse him and opt out of running herself. That prognostication is as good as yours or mine at this point.
Interesting prediction ..... thanks. Personally, I've been thinking that if she decided not to enter, she'd probably endorse Michele Bachmann. But I think that it's much more likely she'll enter the race over the July 4th weekend, maybe on the 4th itself, which is a Monday (good spot in the news cycle).
No particular reason for picking July 4th other than the symbolism, but someone speculated on that possibility, and I think it's a good guess. I can't see her waiting too much longer -- Labor Day, say.
The early money for the primaries will commit over the summer, so she needs to be in there. Unlike Fred Thompson, who was restrained in 2007 by contractual obligations to NBC, so he waited until after the new TV season began, and by then it was too late. The money, what there was of it in that starveling GOP political year, was already gone.