Otis theory on the ending (without having read everything above, so maybe this has already been floated):Why did it end that way?  So we'd talk about it.  So we'd think about it.  Is it unsatisfying?  Perhaps a little, if only for our innate human desire for answers and clarity.  But Chase didn't want to just give in to that.  He wanted us to think, to question.  In recent weeks, Tony has been questioning the meaning of life (picture him out in the desert "I get it!"), AJ has been questioning what it's all about, and there has been more and more dialogue about what a mess the world is.  How does it end?  With a discussion of Tony's comment that you need to "remember the good times."  They're both right.  Life and this world are pretty screwed up, but you have to remember the good times.  Through all of that, though, you shouldn't just waltz through blindly.  You should continue to question, continue to wonder, and continue to imagine something else.  That's why Chase ended it the way he did.  It all follows that theme.  It leaves us questioning, wondering, pondering, and, although it may not be as immediately satisfying as a nice and neat ending, in the long run it's far more meaningful for everyone.Everyone will have there own feelings about what happens when the screen goes blank, from Tony being shot, to agents walking in to drag him off to jail, to a million other things.  Who knows.I also like how the show ended with AJ back on track, cruising aroudn in the M3, super hot chick, and laughing and enjoying life again.  It tied in with the theme above -- that life is bad sometimes, and good other times, but that at least, like AJ, we should question things.It was a good ending, and I think the more people reflect on it, the more they'll appreciate it.