Check out this article from Scott Collins pondering if Kidnapped, starring Dana Delany and Timothy Hutton, will be the first show to get yanked off the schedule; the numbers were pretty ugly over there on NBC.
This show is apparently expensive to make, too; it was shot in New York City. So far it looks like this is the biggest flop of the season, now two weeks old. The Death Watch continues as we wait for the first show to officially be "cancelled". Maybe NBC will chicken out and put Kidnapped on hiatus.
On FOX they said that Justice, booted off the schedule with an early hiatus, will return with "new episodes... after the World Series," so that answers the question about whether this show is cancelled. Not yet, anyway.