1) She is a paid contributor/ commentator for Fox News.
2) She may be a private citizen, but she is also a former governor and VP candidate.
4) Huckabee and Romney are private citizens (will they be "injecting themselves into the public eye" if they comment on the SOTU?)
5) She indicated that she may be considering a run for POTUS in 2012 - she would be foolish not to inject herself into the public eye if she is considering a run.
6) The human debris that passes for media in this country have been trying to shut her up since she stepped on the public scene - as Rush said, "the left will tell us who they fear." I for one don't want the bastards on the left to win in that regard! (maybe you do?)
7) After being dragged into the Arizona shooting, she was accused of "making the story about her" simply by responding to the despicable (and coordinated) smear campaign. She told Hannity she isn't going to sit down and shut up! GOOD!
6) Last but not least - the last time I checked, she is still afforded the same First Amendment rights as any other American and can speak her mind any time she wants.