We went and saw it Saturday. It was pretty good, though it could have been better. I would have liked to have seen more of the Terminator special effects; kinda like what was in the first three movies.
I thought they did a pretty good job of tying the other movies into this one; especially John looking at the picture of Sarah Connor that was taken at the end of the first; the one the Kyle Reese was in possession with. It was also good to see John listening to the recordings that Sarah had made while she was pregnant with him.
Although it wasn't "actually" Arnold, a good surprise was his cameo (as the terminator) at the end of the movie.
I have a feeling this might not be the last one; I think they would need one more to tie the last of the series in with the first in the series. Kyle Reese was a teen in this one; one more would put him at the age to where he would have been sent back in time to protect Sarah.
Overall a pretty good movie although it ran for two hours.
"I would fight for you - I'd lie for you - walk the wire for you - ya I'd die for you..."