It's too late to complain further with AA. When you voluntarily left the plane, you virtually admitted to being "guilty" (notwithstanding the main cabin door still being open).

Personally, I don't use a cell phone, so it's hard for me to say what I would do as I wouldn't be in exactly the same situation. But it's certainly possible I might be doing something that could have the potential to concern a passenger or crew member, and therefore should be booted off the plane pronto.

Well, if that ever does happen, unlike you, I'm not going quietly. The convenience of taking the next flight is nothing compared to the value I place on my right to due process. If the pilot wants me off the plane, he can have a police officer arrest me. On the plane, not in the jetway. If the FA wants me off, he/she can ask the pilot, who can then ask a police officer to arrest me.

ETOPS01 is right; now is when it is more important than ever that we not allow our freedoms to be diluted by those who abuse their newfound power.