Personally, I thought the show and ending sucked, but looking at what's been written on other boards (as Cin said) there's people who read alot more into it and it starts to make sense.

One board said the ending was left to your interpretation and whether or not a movie comes out (which I think will happen) Chase is left with an out.

People on several boards said the screen going black was Tony getting whacked.

Someone on a radio station here said the screen going black was you (the viewer) getting whacked (interesting read on the ending).

One person said (and this one makes the most sense to me) Tony had one shirt on when he walked into the diner, and then saw himself sitting there in the booth, dressed differently. Was he already dead?

I was thinking it was poorly written, but the ending leaves so many possibilities open, may it was, in fact, a genius at work!!! That being said, I still thought the show and ending sucked.

I had predicted Tony would have Phil whacked and Tony himself wouldn't die, leaving an opening for the movie (is he dead, or isn't he?) in which Tony would try to take over New York.

As a reply to that theory, someone posted the possibility of a prequel, a young Tony watching his father and Uncle Junior rise to power. I like that and can see it as a great show.