Wasn't there transcript and even audio from the PA BB released?
quick google: Flight 93 Cockpit Transcript - Wikisource
off the top of my head, I don't recal about the pentagon plane's BB.
-rvb
I don't know about transcripts of the Pentagon plane, but several passengers used their cell phones to call in and describe the hijacking and the situation as it was happening. There were also a few calls made from the Towers prior to their collapse.