Honestly I don't know what to make of it. From what I understand The McCain campaign was keeping her on a very short leash and were getting in the way of a lot of her advisors.
I think a lot of it is pent up frustration. One quote that kind of stuck out for me was "she does not have any relationships of trust with any of us, her family or anyone else.".
I think that is absolutely ridiculous.
I do think that she will make a run in the future. 2012 maybe I think it will be later though.